The common squid is a weird and wonderful predator found all around our coasts.

This dainty seaduck is a winter visitor to our coasts, particularly in northern and eastern Scotland.

This long-lived bivalve can be found buried in the sand on the south and west coasts of the UK.

The sinuous otter is an excellent swimmer and can be seen hunting in wetlands, rivers and along the coast - try the west coast of Scotland, West Wales, the West Country or East Anglia for the best…

The brown shrimp blends perfectly with its seabed home and is found all around the coasts of the UK.

This huge gull can be seen around most of the UK's coasts in summer, with some venturing inland in winter.

Sea lettuce is unmistakeable - most often a bright green and always translucent, it is found on all UK coasts.