These non-native limpets arrived from America in the 19th century and are now widespread in the UK. They form stacks and have a specially adapted shell which, when flipped upside down, looks like…

The Sitka spruce was introduced into the UK from North America in the 19th century. It has been widely planted as a forestry tree; look for classic needle-like leaves and pale brown, domed cones…

The Common clubtail is on the wing in spring and summer. It is an elusive dragonfly that is easiest to see when it first emerges. It can be found along rivers in Southern England and Wales.

The stinging nettle is a familiar and common plant, often firmly rooted in our memories after our first, hands-on experience - a prickling irritation that's not forgotten easily!

This large round urchin is sometimes found in rockpools, recognisable by its pink spiky shell (known as a test).

If you spot a crawling shell next time you're at the seaside, take a closer look… it might be a hermit crab!

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

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

The serotine is one of the first bats to appear at night and can be seen around lamp posts chasing moths, or at treetop height. It likes to roost and hibernate in old buildings in the south of the…

Found on rocky shores and seabeds, the Keyhole limpet gets its name from the little hole at the tip of its shell.