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.

Largely confined to the north of the UK, the rare pine marten is nocturnal and very hard to spot. However, it can be enticed to visit a peanut-laden birdtable.

This bumpy shell lives up to its name and lives partly buried in the seabed along the west coast of Great Britain.

A well-travelled migrant, the painted lady arrives here every summer from Europe and Africa. This beautiful orange-and-black butterfly regularly visits gardens.

The bill-shaped seed pods of Common Stork's-bill explode when ripe, sending the seeds flying! This low-growing plant has pretty pink flowers and can be seen on grasslands and coastal sands.…

An attractive, green-and-yellow bird, the siskin regularly visits birdtables and feeders in gardens. Look for the bright yellow barring on its black wings, and the black crown of the males.

This large skate has tiny, prickly spines all over its back.