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.

Look out for the white, umbrella-like flower heads of lesser water-parsnip along the shallow margins of ditches, ponds, lakes and rivers. When crushed, it does, indeed, smell like parsnip!

Musk mallow has pretty pink flowers that can be seen along roadside verges, hedgerows and field margins in summer. It lives up to its name, producing a delicate, musky smell that increases indoors…

This slender shark gets its name from the spines in front of its dorsal fin. It can use these spines to defend itself by curling in a bow and striking at a predator.

The chocolate-brown, plump dipper can often be seen bobbing up and down on a stone in a fast-flowing river. It feeds on underwater insects by walking straight into, and under, the water.

One of 2 seahorses found in UK seas, long snouted seahorses are recognisable by their longer snout and fleshy "mane".