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

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

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

Horsehair worms are parasitic worms of the clade Nematoida alongside their sister taxa Nematoda, the roundworms. The most famous trait of certain species of horsehair worms is the ability to alter…

These colourful little fish are a delight for snorkellers or shallow water divers to photograph, rarely being scared off by their presence!

The ocean sunfish is the second largest bony fish on the planet and visits UK seas during the summer months to feast on jellyfish.

This clown-like fish is a favourite amongst divers and snorkellers. They are inquisitive little souls and will investigate divers near their hidey-hole homes.

Frogbit looks like a mini water-lily as it floats on the surface of ponds, lakes and still waterways. It offers shelter to tadpoles, fish and dragonfly larve.

With tiger-like stripes, red fins and a humped back, the perch is a striking fish. It can be seen in lowland waterbodies and waterways across the UK, often in shoals.