Cornell K. Lisa Yang Center for Wildlife Health

September/October 2025

The passing of Dr. Jane Goodall marks the loss of a visionary whose work transformed how we see and care for the natural world.  At the Cornell K. Lisa Yang Center for Wildlife Health we will continue striving to follow her example of compassion courage and unwavering dedication to protecting the one Earth we all share.

Addressing Planetary Health in a Rapidly Changing World

Planetary Health Safeguarding both human health and the natural systems that underpin it

Dear Friends of the Cornell K. Lisa Yang Center for Wildlife Health,


I want to celebrate a special anniversary. Ten years ago this summer, a group of us launched the transdisciplinary field of Planetary Health. In terms of an operational definition, 


Planetary Health is a field focused on improving the understanding of, and ability to measure, the public health impacts of anthropogenic environmental change, so as to inform decision-making in the land-use planning, ocean-use planning, environmental conservation, and public health policy realms. As other commentators have noted, what cannot be measured cannot be managed. The type of transdisciplinary work that planetary health by its nature demands can help in efforts to ensure that the public health consequences of natural resource management decisions get explicitly factored into these decisions at a range of scales, instead of remaining in the realm of vague and poorly quantified externalities.”


At a time in the U.S. when the key governmental agencies responsible for environmental stewardship and public health are effectively being dismantled, with academia and renewable energy (amongst other keys to a sustainable future) under attack, it is admittedly hard to maintain hope. But we must not give up on the science we need to guide our future—all the wanton destruction we are currently witnessing will have to be reversed. We will need to rebuild these entities if we are to have any hope of continuing the United States’ remarkable track record of science-based innovation and associated economic success. I welcome you to watch our 2015 launch of the Planetary Health concept at the Aspen Ideas Festival. We’ve made great progress over the past decade on the challenges described during that launch, and we must and we can continue to build upon this work to ensure a healthy future for humanity and all life on earth. 

Panelists on stage at the 2015 launch of the Planetary Health concept

For more information, please visit the Planetary Health Alliance, which Dr. Sam Myers and I launched in 2015 and which Dr. Myers leads from Johns Hopkins University today.

Yours in One Health,



Steve


Steve Osofsky, DVM

Director, K. Lisa Yang Center for Wildlife Health

Jay Hyman Professor of Wildlife Health & Health Policy

Cornell University College of Veterinary Medicine

News Highlights

Two polar bear cubs

Studying Stress in a Rapidly Changing Arctic: Dr. Kayla Buhler Earns Prestigious Yang Postdoctoral Fellowship in Wildlife Health



The newest Cornell K. Lisa Yang Postdoctoral Fellow in Wildlife Health, Dr. Kayla Buhler, is developing biomarkers to measure stress in polar bears—offering a powerful new toolkit to assess environmental impacts and support conservation efforts.

Catalyzing Conservation Fund

Cornell K. Lisa Yang Center for Wildlife Health Awards Three ‘Catalyzing Conservation Fund’ Grants



Why are eastern rockhopper penguin populations plummeting in New Zealand? What’s a reliable, rapid test for detecting rodenticide poisoning in live birds of prey? How can we use technology to help diagnose wildlife diseases in Nepal while training local scientists?

Dr. Seeley performing a dental exam on a silverback gorilla during a routine preventive care examination

Alumni Spotlight: Katie Seeley '07, DVM '11, PhD, DACZM, Columbus Zoo and Aquarium

A white tailed deer

Wildlife Conservation Gets Down to Business

Podcast Spotlights

Dr. Sara Childs-Sanford with a pelican

Inside Cornell's Wildlife Hospital (video)



A day with Dr. Sara Childs-Sanford is anything but ordinary. Follow her through the fast-paced, unpredictable world of wildlife care at the Janet L. Swanson Wildlife Hospital.

Dr. Jeff White and crested penguins

All About Penguins: Crested Penguins, Climate Change, and Conservation

with Dr. Jeff White (audio)


Dr. Jeff White shares his journey from bird-loving kid to penguin expert, exploring crested penguins, conservation challenges, and why public engagement matters more than ever.

Blogs from the Field

Student measures a marine mammal

Using Veterinary Pathology to Investigate Marine Mammal Strandings in the North Sea


A Snapshot of California’s Wildlife Work


What 1,376 Patients Taught Me About Wildlife Medicine


From Books to the Bush: How Namibia Transformed My Veterinary Education


Let’s Get Slimy! Salamander Research at Cornell

Nature Needs You Now

In an unpredictable world,

wildlife needs steady allies.


Please consider joining us as a

monthly supporter, and help improve

wildlife health all year long.


Because we need nature, and now nature needs us.

More in the News

Cornell Hopes Plan for New Large-Bird Rehab Facility Takes Flight


Sick Deer are Dying in Maryland and Virginia. Here’s What to Know. [The Washington Post]


Saving the World’s Fattest Parrot: Can We Vaccinate Our Rarest Species Before Bird Flu Gets to Them? [The Guardian]


Contrasting Conservation Outlooks for NZ Crested Penguins

The Cornell Yang Center for Wildlife Health transforms science into impact through discovery, education, engagement, and policy to ensure a healthy future for wildlife and the environment that supports us all.


To learn more about the Cornell Yang Center for Wildlife Health,

please contact Dr. Steve Osofsky at s.osofsky@cornell.edu or visit our website.


Let us know if you have any comments on this e-newsletter, and forward to a friend if you find it useful! Thank you for your support.

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Cornell K. Lisa Yang Center for Wildlife Health | wildlife.cornell.edu | s.osofsky@cornell.edu