Britain's largest 'diving beetle' is an impressive creature, though it's not easy to find.

Due to the devastating effects of Dutch elm disease in the 20th century, wych elm is rarely found as a large tree, but is more common as a shrub along hedgerows and streams, and in upland areas.…

One of the UK’s rarest marine species, this giant of the rocky shore is a very special fish.

This beautiful butterfly is one of our rarest, now mostly restricted to the western parts of the UK.

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…

This is a predominantly subtidal species but can be found on the lowest parts of a sheltered rocky shore in summer.

Our largest starfish, the spiny starfish can reach an impressive diameter of 70cm!

Introduced from Japan in the 19th century, Japanese knotweed is now an invasive non-native plant of many riverbanks, waste grounds and roadside verges, where it prevents native species from…

Europe's largest frog is not naturally found in the UK, but was introduced to Kent and has spread throughout the southeast.