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…

Considered Britain's most threatened butterfly, the high brown fritillary can be only be found in a few areas of England and Wales.

A small colourful sea slug that can be found grazing on sea mats on the rocky shore and beyond the low water mark.

This dainty white butterfly is now only found in a few parts of Britain, where it flutters slowly through woodland clearings.

Found almost everywhere, the large yellow underwing is a night-flying moth that is often attracted to lights. It is brown with orangey-yellow hindwings.

This stocky wader is mostly a winter visitor to the UK, where it can be found on rocky, seaweed-covered coasts, often with groups of turnstones.

Field elm suffered declines due to the devastating effects of Dutch elm disease, but can still be found across much of the UK.

The jersey tiger moth is a beautiful moth with creamy white strips on its forewing and bold orange underwings. It is mainly found in the south.

The spiny spider crab lives up to its name in every way! Their distinctive spiny shells are often found washed up on beaches.