Despite its name, the great spider crab is actually smaller than the more common European spider crab.

As the name suggests, this beautiful brown butterfly is most common in Scotland, though it can also be seen in northern England.

The male purple emperor is a stunning butterfly with a brilliant purple sheen. Look for it feeding around the treetops in woodlands, or on damp ground, animal droppings or even carrion in the…

This slim fish is usually found on gravelly parts of the seabed, close to shore, but can turn up in rockpools.

The lightbulb sea squirt is common around much of the UK. Its easy to see where its name came from!

This well-camouflaged woodpecker used to be a common breeding bird in Britain, but is now only likely to be seen passing through on migration.

These large rocky shore fish look like they belong in deeper waters, but they are the find of the day for any rockpooler!

The small white is a common garden visitor. It is smaller than the similar large white, and has less black on its wingtips.

This funny-looking fish certainly won't be winning any beauty pageants, but it's a real contender for Father of the Year!

This striking black-and-white moth flies during the day in open woodlands, moorlands, and bogs. It's most common on Scottish moors.

Spiny lobster, crawfish, crayfish, rock lobsters - many names, one animal! This pretty lobster was made extinct in many areas through overfishing, but is now making a slow comeback.