This enormous water beetle is as rare as it is impressive.

This beautiful orange and brown butterfly is now a rare sight in the UK

The Marsh helleborine is a beautiful orchid of fens, wet grassland and dune slacks. Growing in profusion in places, look for reddish stems and white-and-pink flowers.

Nudibranchs, also known as sea slugs, are much like their land-based relatives that you may spot in your garden. But, unlike your regular garden slug, the nudibranch can incorporate the stinging…

This bog-loving butterfly is mostly found in the north of the UK, where it takes to the wing in summer.

This large green moth rests with its wings spread, so is sometimes mistaken for a butterfly.

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

Sand eels are a hugely important part of our marine ecosystem. In fact, the fledgling success of our breeding seabirds entirely depends on them.

A tall orchid of woodland and scrub, the broad-leaved helleborine has greenish, purple-tinged flowers that look a little 'drooping'. Strongly veined, oval leaves spiral around its stem…

The brown hairstreak is an elusive butterfly that spends much of its time in the treetops feeding on aphid honeydew.