We’re leading the future of conservation and biodiversity science, shaping agendas and influencing change to support better life, health and living for people and wildlife.

marine tagging

The Institute of Zoology

The Institute of Zoology (IoZ) is a world-leading research organisation, directly addressing global challenges in conservation science. The IoZ is the research division of the Zoological Society of London (ZSL), an international conservation NGO that houses living collections at two major zoos (ZSL London Zoo and ZSL Whipsnade Zoo), runs on-the-ground conservation programmes in >60 countries, and engages with policy makers and practitioners around the world.

Our people

As part of ZSL’s global team, we are a community of internationally recognised researchers and students working in conservation science.

More on ZSL's Science and Research

    IOZ annual review cover
    The research division of ZSL

    Institute of Zoology

    The Institute of Zoology is the research division of ZSL. A world-leading research organisation, addressing global challenges in the field of conservation science.

    Postgraduate Study

    Postgraduate Study

    Unique postgraduate teaching, research and training opportunities, helping to build the next generation of conservation science and practitioners.

    A unique opportunity to study species and their biology

    Zoological Research Opportunities

    ZSL conducts, encourages and facilitates evidence-based scientific research to provide greater understanding of the lives of animals.

    Butterfly in Butterfly Parasise at ZSL London Zoo
    Scientific publications

    ZSL Publications

    ZSL has published research in scientific journals, books and reports since 1830.

    A group of people Setting up camera traps in Khlong Nakha Wildlife Sanctuary
    Making a difference for wildlife


    We work on conservation science projects across the globe, protecting critical species, restoring ecosystems and inspiring change.

    library staff
    Search or library catalogue for artworks, journals and more

    ZSL Library and Archives online catalogues

    Use our catalogue to search for various artworks, journals, books and more.


ZSL Prince Philip Library and Archives

The Zoological Society of London was formed in 1826, and since that time we have maintained a world-leading library and archive which has helped generations of leading zoologists, scientists and conservationists understand the natural world. The ZSL Prince Philip Zoological Library and Archives contains over 200,000 volumes, 5,000 journals, illustrations and correspondence.

Find out more about our Library and Archives

Scientific events and public engagement 

Communicating science is an important part of our work. We are in a unique position to engage with over 1.7 million people visiting ZSL’s Zoos annually. Our public engagement activities help us to understand how people relate to the ways in which science can provide solutions to global environmental challenges.

We inspire and inform people about wildlife and its conservation. Engaging members of the public from all areas, including those from underserved and underrepresented communities, is vital to communicating our work. Public engagement projects include Refugia, Scientist in Your Classroom and Soapbox Science.

View our past and upcoming events

Our Annual Reports

IOZ review 2023

vIEW previous annual reports

Climate Change and Conservation

The climate crisis is pushing our planet to its limit, but together we have the power to make a difference.