As its name suggests, Red bartsia does have a red tinge to its stem, leaves and small flowers. Look for it on roadside verges, railway cuttings and waste ground in summer.

The common octopus is a highly intelligent, active predator. It even has a secret weapon - special glands produce a venom that it uses to incapacitate its prey!

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

This worm builds its own home out of bits of shell and sand. It can be spotted on the shore all around the UK.

Found on rocky shores around the UK, Chitons are a kind of mollusc identifiable by their characteristic coat-of-mail shells.

Also known as the two-coloured mason bee, this beautiful bee is famous for nesting in old snail shells.

Their long narrow shells are a common sight on our shores, especially after storms, but the animals themselves live buried in the sand.