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Veterinary Care: The Evolution of Zoo Vet Resources

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I’ve been a practicing zoo veterinarian for 25 years; the last 20 of which have been spent here at the Detroit Zoo. Things have changed so much over the years, especially as it relates to the resources that are available to zoo and wildlife veterinarians as well as the technology we use to share information.

My first “real” job as a zoo veterinarian was at the Potawatomi Zoo in Indiana. I was the zoo’s first full-time veterinarian, and had to build the veterinary programs from scratch. I was a brand-new vet, full of ideas, and the only one at the zoo. It was a fun challenge and I had a lot to learn.

It was a very different time. When I first started I didn’t have a computer that was my own – I shared a very old model with our animal staff that did not have an internet connection. There was no email available back then; in order to reach out to someone for feedback or advice, you had to talk to them on a phone (that was connected to the wall!) The internet was not yet flush with information about zoo medicine, and most publications had to be rooted out of university libraries or actually found on your bookshelf.

So I made a lot of phone calls, talked to people at meetings, eventually sent a lot of emails, and connected with people on “listserves”. Some of my most valuable connections were within a group called the Midwest Regional Zoo Vets. This group started gathering soon after I started working in Indiana, and I very happily joined their ranks. It was a small group at first; five to seven people meeting to talk about anesthesia challenges and vaccine programs and sharing a spaghetti dinner made together in the hospital kitchen. I was the newest, youngest veterinarian in the group and found it invaluable to have this group as a resource.

Things have changed over the years. Electronic resources and connections make it much easier to keep the latest research at our fingertips and obtain feedback from other experts in our field. Despite all these resources, it’s still incredibly valuable to gather together and talk about the challenges we face. I’m happy to report that the Midwest Regional Zoo Vet group is still going strong after more than 23 years, and for most of these I’ve been the organizer and chairperson. We meet twice each year, rotating our locations between a dozen zoos in Ohio and the surrounding states. We have been able to maintain the intimacy of those first, small, cozy meetings, even though our last meeting was 30 members strong.

We talk about all kinds of things, from parasites to grief management, nutrition to radiology. We also often share clinical cases and invite outside experts to join in on the discussion. We talk about the cases that stump us, share our amazing success stories, and discuss our failures. There is no question that can’t be asked, no problem too trivial. I always learn so much more than I expect at our meetings – it’s fantastic! Zoo veterinarians are some of the most generous, dedicated people I know, and bringing my colleagues together to help provide the best possible medical care to animals is extremely rewarding. I’m proud to be part of a profession that feels like family!

– Dr. Ann Duncan is the Director of Animal Health for the Detroit Zoological Society and oversees the Ruth Roby Glancy Animal Health Complex.

Amphibian Conservation: Wyoming Toads Prepare for Breeding

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A pair of small gold eyes peers out from under a mass of sphagnum moss. In a day or two, this warty creature will complete its climb out from the depths of the sandy soil where he has spent the last 30 days sleeping and “chilling” at a cool 38 degrees. Along with seven other individuals of this species, he will awaken due to an increase in temperature and light. By the time the temperature reaches 74 degrees, he will have completely removed himself from the soil and be sitting atop it, hopefully alongside his companion, a slightly larger female. In the week that follows, events these two small cold-blooded creatures will go through could lead to producing thousands of their species in a matter of hours due to their “explosive” nature.

The Wyoming toad (Anaxyrus baxteri) is one of North America’s most endangered species and one of the amphibians we work with as part of a Species Survival Plan (SSP) at the Detroit Zoo’s National Amphibian Conservation Center.  This toad’s wild populations began declining in the 1970s, and by the 1980s was listed as an Endangered Species by the International Union for the Conservation of Nature (IUCN). Possible causes for the population decline are use of aerial pesticides to eliminate mosquitoes, habitat manipulation, and disease in the form of the amphibian chytrid fungus. Realizing a decline was occurring, the last remaining toads were collected and by 1994, all remaining wild-born Wyoming toads were believed to be entirely in captivity. The IUCN now describes the Wyoming toad as extinct in the wild, meaning any toad currently found in the wild has come from captive breeding, in which the Detroit Zoological Society (DZS) has been actively involved.

The Wyoming toad SSP is managed by the Association of Zoos and Aquariums (AZA). The DZS has been a member of this conservation program since 1995 and since 2001 has sent a total of 6,505 tadpoles and toadlets to the wild. All Wyoming toads are the responsibility of the U.S. Fish and Wildlife Service (USFWS), so members of the AZA work closely with them to follow all USFWS permit guidelines for keeping them in captivity. The goal of any captive breeding program is to produce healthy offspring for release into the wild with the goal of rebuilding them into a self-sustaining population. Each toad in captivity is identified and tracked, which helps to pair toads that will produce the most genetically diverse and healthy offspring. Breeding pairs of toads are chosen almost a year in advance so toads have plenty of time to move from one zoo to another to create the breeding pairs.

Although not as well known as Jabari and Kivuli, the giraffe couple at the Detroit Zoo, Wyoming toads Butler and Beverly are a very important couple of toads. They are part of a “bio-secure” population and will never be seen by the public, which ensures they will not accidentally release diseases, known or unknown, into the wild via their offspring. They are held with four other pairs of Wyoming toads in a special room away from all other amphibians, so they will remain free of diseases that could otherwise be found in species not native to the western region of North America.

At the AZA’s recommendation, Butler arrived at the Detroit Zoo last October to be paired with Beverly, who arrived in 2012. Both are now 3 years old, which is about middle aged for a Wyoming toad. In early April, they were placed together into a thermostat-controlled “hibernaculum”, which is used to cool the toads, simulating the hibernation period a wild Wyoming toad would go through during the winter. The toads are kept cooled for about a month to help prepare them for breeding; eggs or sperms may develop and mature as a result of this cooling. The toads are given plenty of sandy soil to bury down into and sleep in just as they would have in the wild, and the Zoo’s animal care staff checks in on them weekly to make sure they are doing well.

At the end of May, the temperature in the hibernaculum will be increased to 70 degrees Fahrenheit and the toads will begin to awaken. Once they have climbed out from the soil, we will place them back into regular husbandry for a few days where they will continue to warm up and eat. Recordings of male toads calling are played during this time to condition toads further for breeding. Within a few days of emerging from hibernation, Butler and Beverly will be placed into a breeding chamber with 2-3 inches of water. The pair will hopefully go into “amplexus” within a few hours, which happens when the male positions himself on top of the female using his front legs and squeezes her, encouraging her to lay eggs. He fertilizes the eggs as she lays them, usually in the dark, overnight. Butler and Beverly should lay thousands of eggs, which is typical of toad species. Described as “explosive breeders”, the more eggs they can lay the better the chance offspring have of surviving the elements, diseases and predators. Since this is a captive breeding, we can help the thousands of eggs that Butler and Beverly produce survive into strong, healthy tadpoles.

Approximately two to three weeks after eggs have hatched into thousands of hungry tadpoles, arrangements are made with the USFWS to ship the tadpoles to Wyoming, where they will be released into protected wetlands. These tadpoles will add to those previously produced in captivity sent yearly by the zoos that participate in this program and the USFWS.

The wetlands are monitored during the spring and summer as part of yearly field surveys done to track the health and population of the toads. This year we hope that Butler, Beverly and the three other pairs of Wyoming toads at the Detroit Zoo are able to contribute thousands of healthy tadpoles to the wild population.

– Rebecca Johnson is the associate curator of amphibians for the Detroit Zoological Society.

Humane Education: Helping Animals in Need

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As animal lovers, when we come across an animal in need of help, we want to take action. But when we find an injured or orphaned critter, often times we’re not sure what to do.

Here at the Detroit Zoological Society, we receive emails and calls throughout the year from people who want to aid local wildlife. Although we wish we could provide sanctuary for all animals in need, we are unable to do so in nearly all cases. But we think it’s wonderful that so many people want to assist these sentient beings, so we’ve compiled a list of helpful resources.

The following links contain contact information for reputable organizations and rehabilitators that are able to provide support. Download the app and jot down the phone numbers found in the links. You can keep a copy on hand so that the information is available should a need arise.

  • Animal Help Now App – Find contact information for nearby emergency wildlife assistance across the U.S., including wildlife rehabilitators, rescues and veterinarians.
  • All Species Kinship Wildlife Hotline – (877) 596-7776

Remember if you come upon an animal that you think needs help, don’t address the situation without first reaching out to a professional for his or her advice. If ever you’re in doubt, call an expert.

– Lisa Forzley is a curator of education for the Detroit Zoological Society and oversees the Berman Academy for Humane Education. Learn more about the Academy, which was created to help people help animals and offers a broad range of engaging programs, at http://detroitzoo.org/education/humane-education.

Education: Penguin Center offers Wealth of Learning Opportunities

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The Polk Penguin Conservation Center is not only a state-of-the-art facility for penguins – the largest of its kind in the world – but it also contains a wealth of educational information about Antarctic explorers, modern-day researchers, and the incredible, fragile ecosystems at the bottom of the Earth.

During a visit to this incredible facility, visitors first enter the South American Gallery and are “met” by Sir Ernest Shackleton and the crew of his legendary ship, the Endurance. Shackleton led the ill-fated 1914 expedition to complete a transcontinental crossing of Antarctica. The endeavor became a survival story when his ship became trapped, and eventually crushed, by ice in the Weddell Sea. A dock scene tells the incredible survival story of the Endurance crew.

As you descend the entrance ramps and venture further into the penguin center, you “board” Shackleton’s Endurance and cross the Drake Passage to Antarctica. You may be met with a calm sea at day, a starlit night sky or the Drake’s notorious rough seas. Continuing down the ramps, you cross the Antarctic Convergence, which occurs when the moist air above the Atlantic, Pacific and Indian Oceans meet the frigid air above the Southern Ocean. The mixing of warm and cold air causes the moisture to condense and create fog. As you make your way below deck, portholes show glimpses of Antarctic wildlife including orcas, krill and leopard seals.

After passing through the acrylic underwater tunnels and the Underwater Gallery, the path brings you to a world of ice. Spotlight on Science showcases the research of world-renowned polar ecologist and penguin expert Dr. Bill Fraser, head of the Polar Oceans Research Group, and the importance of sea ice for the Antarctic ecosystem. Food sources for many species in the Antarctic region require sea ice for survival. Understanding these ecological changes caused by the shifting formation of sea ice can help us protect ecosystems in the future.

Across the cavernous room, Ice Core Investigations allows guests to explore ice cores, an important tool in uncovering the history of the Earth’s climate. Ice cores are drilled and excavated from thousands of years of compressed snow that has turned to ice. The air pockets trapped between layers serve as a record of what gasses filled the atmosphere over time, allowing us to compare different periods of climate history.

Watch for calving glaciers as you climb the stairs to the Antarctic Gallery. A glacier is a very large piece of ice that is pulled across land by gravity like a slow conveyor belt. Reaching the ocean, ice breaks off from the rest of the glacier and falls into the sea during a process known as calving.

Just outside the Drake Passage Gift Shop, Focus on the Field features the Detroit Zoological Society’s own Matthew Porter, a bird department zookeeper who had the rare and extraordinary opportunity to spend the 2015-2016 austral summer doing field work for the Polar Oceans Research Group in Antarctica. Matthew studied adélie penguins, chinstrap penguins, gentoo penguins, brown skuas, south polar skuas and southern giant petrels.

Learning about the Antarctic ecosystem while journeying through Polk Penguin Conservation Center may compel you to want to help in some way. Before exiting the penguin center, visitors have the opportunity to Make a Difference in the Antarctic Gallery. The Make a Difference kiosks guide you in finding ways to help. Whether it is buying your groceries locally, changing your home lighting to energy-efficient light bulbs, or riding your bicycle to work, you can make a difference with every step you take. The machines allow for you to take a picture of yourself, which is then placed onto a digital card that includes your pledge as well as facts about sustainability and the hashtag #MakeADifference. The digital card is emailed to you, with the option of also posting to social media sites to share with your friends and family.

All those who pass through the Polk Penguin Conservation Center have the ability and opportunity to join us in our mission of Celebrating and Saving Wildlife and leave a lasting, positive impact on the Earth.

– Claire Lannoye-Hall is a curator of education for the Detroit Zoological Society.

Animal Welfare: Educational Partnerships that Improve Animal Well-Being

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In a number of instances, the work we do to enhance the welfare of the animals at the Detroit Zoo is a result of collaboration and partnerships. One such partnership is with Madonna University. Students enrolled in a class that is part of the humane education curriculum join us each semester to undertake projects that will benefit the animals.

We work with animal care staff to select projects suited to each species and the students are responsible for learning about that species to better understand the impact that their project will have on the animals’ welfare. The students are divided into three groups and each group is assigned a particular project. The groups work with mentors from the Life Sciences division and over the course of several weeks, complete their project. On the last day, all of the students get the chance to see the results of all of the projects in order to gain more appreciation of the various ways in which we can positively impact animals living in the care of humans.

Over the course of the last few years, the Madonna University students have participated in projects benefiting warthogs, amphibians, giraffes, gorillas, reptiles, rhinos and birds living in the Free-Flight Aviary, to name a few. This year, the students will help us to modify habitats for giant anteaters, flamingos and kangaroos and wallabies in the Australian Outback Adventure. This will involve the creation of nesting areas for the flamingos, as well as planting shrubs for the anteaters and kangaroos in order to add more complexity to their environments and create additional areas of shade. These types of modifications are important to ensure that animals encounter novelty and have more opportunities to display species-typical behaviors.

This wonderful partnership is an example of how the Detroit Zoo provides educational and inspirational opportunities for students and is always finding ways to design engaging habitats for the animals.

– Dr. Stephanie Allard is the Director of Animal Welfare for the Detroit Zoological Society and oversees the Center for Zoo Animal Welfare.

Education: Constructing School Kitchens in Peru

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During the second week of our visit to Peru as part of the Adopt-A-School program, we continued to deliver donated school supplies to our final eight communities along the Amazon and Napo rivers. Students and teachers received pens, pencils, rulers, notebooks, textbooks and more that will assist with making learning accessible and achievable. The students showed their appreciation for this invaluable academic support by thanking the volunteers and giving presentions cultural performances, many of which include ecological messages.

As part of the Adopt-A-School program, community partners must commit to following these requirements:

  • Children must go to school regularly
  • Conservation and preservation of the Amazon Rainforest must be standard community practice
  • Communities must be kept clean
  • Productive projects such as medicinal gardens or crops must be maintained in community spaces

Creating reverence and respect for the natural world starts in childhood, is re-enforced through schools and grows into adulthood. In some of the long-standing Adopt-A-School communities, some former program participants now have children within the program, further expanding conservation and preservation as a family value.

In addition to school supply deliveries, the second week of the Adopt-A-School visit includes a service project. This year’s project is taking place at Centro Unido and includes constructing a school kitchen for the government-funded Qali Warma (Quechua for “strong child”) meal program. This will allow parents to cook both breakfast and lunch every day at school to further incentivize attending class by providing meals, while making learning easier by removing hunger as a distraction.

While construction is going on, some volunteers work with the children, providing individualized attention that is hard to come by in a classroom setting. We do many crafts and art projects with the students, exposing them to different learning experiences that are sometimes missing in the rote learning style of Peru. This opportunity to interact one on one with students creates new friendships and many memories.

As this Adopt-A-School volunteer trip comes to an end, it is hard to say goodbye to all of the people we’ve met in Centro Unido as well as the volunteers who have committed their time, energy and finances to making this program a possibility. A big thank you goes out to all who made the 2016 Adopt-A-School school supply deliveries and service project a great success!

Are you interested in preserving the rainforest, one child at a time? For more information on Adopt-A-School donations and volunteer opportunities, please visit http://detroitzoo.org/support/give/adopt-a-school.

– Adam Dewey is an education specialist for the Detroit Zoological Society.

Veterinary Care: Ultrasound Exams for Frogs

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Spring is in the air, and as I hike and bike the trails in southeast Michigan I find myself excited to be immersed in the lovely chorus of spring peepers and tree frogs as they prepare for this year’s breeding season. This also means it won’t be long until it is amphibian breeding season at the Detroit Zoo! Each year, the veterinary team works closely with our amphibian staff to provide support for our amphibian breeding programs. Our curators and keepers set up special breeding areas and adjust the temperature, light cycles, humidity and water access to simulate conditions in the wild and encourage natural breeding. They even set up simulated rainfall and play tape-recorded sounds of breeding calls collected from the wild.

Even with all of this, some of our endangered amphibians need a little more help to breed successfully.   At the Detroit Zoo, we have over a decade of experience administering special hormones to Wyoming toads and Puerto Rican crested toads to help with breeding. We have been very successful with these programs; two years ago the amphibian staff sent 3,914 Wyoming toad tadpoles to Wyoming and last year they sent 22,571 Puerto Rican crested toad tadpoles to Puerto Rico for release into their native habitat. This is important work and we are proud to be able to help.

As zoo husbandry staff and amphibian reproductive experts have gained expertise, it has become clear that not all amphibians respond the same way to changes in their environment and established hormone protocols. Two years ago, we purchased a high frequency ultrasound probe, and we have found that we can monitor the appearance of the ovaries and follicles as they develop and mature within female frogs and toads. This provides a very powerful tool for understanding the impact of the husbandry and hormone treatments that we apply, and will allow us to establish assisted reproduction methods for other endangered species.

This season we have some exciting things planned, and have started the early work to check the females we are hoping to breed. Last week, we performed ultrasound exams on our three female giant waxy tree frogs, and were able to see that they are all developing large, follicle-filled ovaries. Based on the appearance of the follicles, we think that they will be ready to breed in the next few weeks to a month.

This week, we will be conducting ultrasound exams on our endangered Mississippi gopher frog females. Once we see their degree of follicle development, we’ll be able to plan a hormone and husbandry strategy for this year’s breeding season. Hopefully we will have exciting news to share in the coming months!

– Dr. Ann Duncan is the Director of Animal Health for the Detroit Zoological Society and oversees the Ruth Roby Glancy Animal Health Complex.

Education: Preserving the Rainforest, One Child at a Time

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We’re off to Peru for the 24th year of Adopt-A-School, a program that empowers the citizens of the Amazon rainforest to conserve and protect this globally vital ecosystem.

For this journey, I am joined by fellow Detroit Zoological Society Education Specialist Ben Connor Barrie and 20 volunteers from the U.S., Canada, and as far as Australia. We will be making deliveries of school supplies to communities along the Amazon and Napo rivers.

An average day begins with us packing the four “rapidos”, or fast boats, with school supplies. The volunteer team splits up into small groups and each heads out in a different direction to deliver the supplies. The children often come running to the riverbanks to greet us while adults play traditional Amazonian music on drums and flutes. Once the school supplies are moved into the schools, we begin the ceremonies with speeches, dances and more music.

During one of these deliveries, I was lucky to return to a community that is very special to me. Pucallpa is home to many students I’ve become attached to, as it was the first location I traveled to on a service project three years ago. During my last visit to Pucallpa, I had some down time after program evaluations and took up with a few elementary-aged boys who were playing with their balsa wood airplanes. We zoomed around making plane noises through the school and into the schoolyards. One young boy remembered this and wanted me to do it again. He disappeared for a few moments before returning with one of his balsa wood airplanes. He handed it to me and said it was a gift for me. This was by far one of the most special gifts I have ever received from anyone, as it was truly given from the heart.

The global importance of this region cannot be stated enough. It is home to a massive variety of life and produces much of the world’s oxygen. The people who call this region of the world home are crucial partners in conserving the Amazon rainforest. This international collaboration is preserving the rainforest, one child at a time.

For more information on Adopt-A-School donations and volunteer opportunities, please visit http://detroitzoo.org/support/give/adopt-a-school.

– Adam Dewey is an education specialist for the Detroit Zoological Society.

Amphibian Conservation: Species in Crisis

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Let’s focus our attention on the smallest residents living at the Detroit Zoo: amphibians. No other class of vertebrates has the ability to adapt and evolve as quickly in our ever-changing planet as amphibians. They have used every reproductive strategy and developed life stages influenced by environmental factors; they can be colorful, camouflaged and cryptic, regenerate limbs, and have been on Earth for the last 200 million years.

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Currently, amphibians are the most threatened group of animals in the world with 40 percent of all species at risk. This crisis is considered the greatest extinction event in history; it’s also the Earth’s sixth mass biological extinction. While previous mass extinctions have been driven by natural planetary transformations or catastrophic asteroid strikes, the current die-off can be associated directly with human activity. This epoch started when human activities began having a significant impact on the Earth’s ecosystems.

The Detroit Zoological Society (DZS) participates in Global Assessments, which provide a comprehensive inventory of the conservation status of biological species as well as a critical dataset for evaluating the health of key elements of biodiversity and identifying threats to their survival. Newly described species emerge yet extinctions are occurring at an even faster rate. Climate change is the most dramatic cause of declines, and it affects amphibians both directly and indirectly, as reproduction is dependent on temperatures and seasonal transitions. Low pond levels expose embryos to more ultra violet (UV) light and UVB radiation is harmful to many species. The shorter periods and earlier opportunities for breeding ultimately reduce the chances of success. Amphibians are also dependent upon water, which makes them vulnerable to desecration when ponds dry too quickly. But since amphibians rely on the environment, they also are excellent storytellers. They can help us determine where pollutants are and if there is misuse of habitat.

When the National Amphibian Conservation Center (NACC) opened at the Detroit Zoo in 2001, it was the first major facility dedicated entirely to conserving and exhibiting amphibians. The award-winning, state-of-the-art amphibian center is home to a spectacular diversity of frogs, toads, salamanders, newts and caecilians, many of which are the subjects of field research and part of cooperative management programs called Species Survival Plans (SSP). Amphibians selected for an SSP are generally threatened, endangered and sometimes even extinct in the wild. The DZS is actively involved in many of these programs, including for the Wyoming toad, Puerto Rican crested toad, Panamanian golden frog, crawfish frog and Mississippi gopher frog. Some amphibians bred at the Detroit Zoo have been released into the wild to boost endangered populations, and others require us maintaining a “captive assurance population” because due to factors in the wild, they cannot be released just yet. When it’s safe for these species to return to their native homes, we have a population ready to release. We have specially designed, bio-secure rooms that can hold each of these species so they won’t be exposed to other amphibians or anything else that may be harmful when they are released.

In addition to maintaining our captive amphibian population and our efforts in cooperative breeding programs, DZS staff participates in several field projects and research programs, offers citizen science training and provides support for wildlife rescues, including those from the exotic pet trade.

– Marcy Sieggreen is the curator of amphibians for the Detroit Zoological Society and oversees the National Amphibian Conservation Center at the Detroit Zoo.

Editor’s note: Marcy Sieggreen was the curator of amphibians for the Detroit Zoological Society from 2008 until her passing in 2016. The Detroit Zoological Society established the Sieggreen Amphibian Conservation Fund in Marcy’s memory to continue to advance the work she so passionately championed.

Education: What is a Species Survival Plan?

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Red pandas Ta-Shi and Shifu have produced several adorable cubs at the Detroit Zoo, most recently little Tofu. North American river otters Whisker and Lucius have sired a couple pups and reticulated giraffes Kivuli and Jabari are well known for their now 13-foot-tall calf Mpenzi. Pairings like these and the offspring that follows are not by chance; each is carefully planned out and managed through what is known as a Species Survival Plan (SSP).

The 230 accredited zoological institutions that comprise the Association of Zoos & Aquariums (AZA) work together through these cooperative management programs to ensure genetically healthy, diverse and self-sustaining populations of threatened and endangered species. More than 450 species are apart of an SSP throughout zoological institutions in North America, overseen through a comprehensive population management system, which includes a Studbook and a Breeding and Transfer Plan. Each of these identifies population management goals and makes recommendations to ensure the sustainability of a healthy, genetically diverse and demographically varied animal population.

The Detroit Zoo has individuals from 98 of these species under its care, including 38 birds, 30 mammals, 24 reptiles, four amphibians, one fish and one invertebrate. Many of these species are animals that require immediate attention to save the remaining wild populations. Our cooperative breeding efforts have proven extremely successful – for example, the Detroit Zoo has been credited with restoring the population of a Tahitian land snail called partula nodosa, once extinct in the wild. Additionally, in May of last year, 22,571 Puerto Rican crested toad tadpoles bred at the Detroit Zoo were released into the wild of Cabo Rojo, Puerto Rico. In 2014, a record 3,945 Wyoming toad tadpoles bred at the Detroit Zoo were released into the wild. This long-running effort was previously recognized as No. 1 on the AZA’s list of the Top 10 wildlife conservation success stories.

AZA institutions and partners work together to carefully monitor SSP species both in the wild and in zoo populations. Organizations will often move SSP animals to other zoos and aquariums so they can mate with individuals to ensure a long-term healthy future for the species. Breeding recommendations are made with consideration given to each animal’s social and biological needs as well as transfer feasibility.

Be sure to look for the SSP logo on animal signage as you explore the Detroit Zoo on your next visit. Each time you see the logo, you’ll know that there are countless individuals working at zoos, aquariums and in the field around the world to do everything we can to save and rebuild the remaining populations of these species.