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Take part in National Mammal Week 2025

21 - 27 April • Nationwide

National Mammal Week is dedicated to raising awareness and promoting conservation of British mammals.

Did you know?
One in four mammal species in the UK are at risk of extinction, highlighting a growing crisis for mammals.

About National Mammal Week

National Mammal Week, brought to you by the Mammal Society, is a celebration of Britain’s mammals and an opportunity to raise awareness of the challenges they face.

One in four UK mammals are threatened with extinction, with many others in decline. The British Isles are home to many species of mammal, from the tiny pygmy shrew to the giant fin whale. And yet, mammals are some of the most under-recorded species in Britain.

From April 21st to 27th, the conservation sector, volunteers and nature-lovers come together to celebrate these remarkable creatures and raise awareness about their conservation.

Through a series of engaging events, educational activities, and community initiatives, National Mammal Week offers a unique opportunity to learn about the importance of mammalian biodiversity and the urgent need to protect it. Whether you're exploring local habitats, attending informative workshops, or participating in citizen science projects, there's something for everyone to enjoy during this week-long celebration.

Find an event near you

1/4

of UK mammals are threatened with extinction. (Source: Mammal Society)

78%

of UK households have access to a green space where wild mammals live.(Source: UK Government)

100%

of native UK mammals are essential for balanced food webs, biodiversity, and soil health.

2025 theme: Where The Wild Things Should Be

This year, we're exploring the theme Where the Wild Things Should Be, highlighting how much wilder our nature-depleted landscapes should be—and how everyone can play a role in restoring them.

This campaign advocates for the return of Britain’s wild mammals to the places they once roamed and raises awareness about the critical need to rewild urban spaces, rural areas, and beyond.

We invite everyone to participate in restoring the balance of nature and ensuring wild mammals can thrive where they should be: in our communities, landscapes, and hearts.

Let’s reconnect the wild, together.

One in four UK mammals are threatened with extinction. But there’s hope. From gardens and parks to campuses and schoolgrounds, small green spaces act as vital lifelines—helping mammals move, feed, and thrive.

Protecting wildlife starts with good data. When we know what species are present, we can take the right steps to bring mammals back to the places they once called home. And no one is better placed to record them than the people who live, work, or study there every day.

This nationwide citizen science project aims to encourage and enable people of all ages to help address the lack of data on mammal populations in Britain by monitoring and recording the mammals visiting their gardens and local areas.

You can use a variety of easy and fun methods to record mammals, including footprint tunnels and camera traps. In all cases, participants are asked to submit records of the mammals they detect on our free Mammal Mapper app, available for Android and Apple devices.

Register to take part

Are you hosting an event for National Mammal Week?

Share the event details with us below and we will list it on our events calendar.

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Did you know?
Hedgehogs can travel up to 2km a night in search of food and mates, but fences and walls in cities often block their paths.

Take part in the Mammal Discovery Challenge

About the Mammal Society

Established in 1954, the Mammal Society is Britain’s leading charity devoted to the science-led conservation of mammals. They work to raise awareness of the issues mammals face, sharing scientific research so that populations can be protected and restored across the British Isles and Ireland. Ensuring a bright future for British mammals, the Mammal Society inspire conservation projects, empower stakeholders through training and resources, and raise public awareness through education and campaigns.