This tiny wading bird is most often seen in autumn, feeding on the muddy margins of wetlands.

Have you ever seen those worm-like mounds on beaches? Those are a sign of lugworms! The worms themselves are very rarely seen except by fishermen who dig them up for bait.

Planaria are flatworms in the phylum Platyhelminthes with amazing regeneration abilities giving them the title 'immortal under the edge of a knife'. There are many different species that…

Small-spotted catsharks used to be called lesser-spotted dogfish - which might be what you know them best as. It's the same shark, just a different name!

Mackerel are a sign of summer's arrival, when they appear inshore in huge numbers all around the UK. As well as being a sustainable seafood choice, they are an important food source for many…

Look out for this tiny crab under rocks and boulders on rocky shores - you'll have to look closely though, they're pretty well camouflaged!

The sanderling scampers about the waves looking for marine crustaceans, fish and even jellyfish to eat. It visits the UK in winter from its Arctic breeding grounds, but can also be seen as it…

A stocky, little sandpiper, the knot can be spotted in estuaries from August onwards, migrating here from the Arctic where it breeds. Look out for it probing the muddy sand with its specialised…