One in four UK mammals are threatened with extinction.
The British Isles and Ireland are home to many species of mammal, from the common shrew to grey seal. We work toward a future where populations thrive as part of healthy and diverse ecosystems benefiting people and nature.
ANNUAL CONFERENCE 2025 TICKETS NOW AVAILABLE
ANNUAL CONFERENCE 2025 TICKETS NOW AVAILABLE
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Discover British mammal species
With approximately 90 species spanning across land, air, and sea, there are many fascinating creatures to learn about. From iconic land-dwellers like red foxes and badgers to majestic marine mammals like seals and dolphins, the British Isles are home to a rich tapestry of mammals.
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Become a Youth Ambassador
Our Ambassador Programme is your gateway to the world of mammal conservation.
Join the Local Groups Network
A growing movement of mammal enthusiasts across Britain.
From the world of mammal conservation
Stay informed about the latest mammal news, tips and events in our newsletter.
Discover the Local Groups Network
Our local groups support a growing movement of mammal enthusiasts across the British Isles and Ireland. Discover a group near you and join alongside like-minded individuals who are dedicated to safeguarding mammals.
Buy Crap Calendar 2025
Get our A4 full-colour wall calendar that lets you pan what you do with mammal poo.
Submit your work
Enter the Mammal Photographer and Illustrator of the Year 2025 competition.
Buy gift membership
Membership of the Mammal Society is a wonderful gift for nature enthusiasts of all ages.