The black sea bream really is a fascinating fish. From sex changes to nest building, this fish is full of surprises!

The bronze-coloured bream can be seen gathering in large shoals in lowland ponds, lakes and slow-flowing rivers. It is a member of the carp family and looks similar to the dace, chub and rudd.

It's easy to see where the blue shark got its name from. These sleek, elegant sharks have beautiful metallic blue backs which provide brilliant camouflage out in the open ocean.

Despite its name, the "common" skate is not so common anymore. In fact, they are Critically Endangered.

These little critters are related to the woodlice you find in your garden and play a very important role on rocky shores.

The porbeagle shark is a member of the shark family Lamnidae, making it one of the closest living relatives of the great white shark.

This gentle giant is the largest shark in UK seas, reaching up to 12m in length. There's no need to fear them though, they only eat plankton!

The thresher shark is a migratory species and passes through UK waters in the summer months. If you’re lucky, you might see this magnificent shark jump high out of the water in to the air.