As water quality declines, more than half of fresh water fish species are at risk of extinction. Help us investigate the health of ponds, lakes, rivers and streams on a scale never seen before.
The coasts around Britain are teeming with life. Find out more about these fantastic species, explore how climate change is affecting their habitat and help influence marine conservation.
Images: John Hunt, iStock/evgenyatamanenko, Rory MacKinnon