From vast plains spreading across the seabed to intertidal flats exposed by the low tide, mud supports an incredible variety of wildlife.

Meadows of seagrass spread across the seabed, their dense green leaves sheltering a wealth of wildlife including our two native species of seahorse.

Forests of kelp sway in shallow sunlit waters, offering shelter to a host of sea life from tiny worms to juvenile fish.

Rocky habitats are some of the most natural and untouched places in the UK. Often high up in the hills and hard to reach, they are havens for some of our rarest wildlife.

These grasslands, occupying much of the UK's heavily-grazed upland landscape, are of greater cultural than wildlife interest, but remain a habitat to some scarce and declining species.