Largely confined to the north of the UK, the rare pine marten is nocturnal and very hard to spot. Reintroductions are helping it make a comeback.

A very rare species, this moth is now limited to one site in the UK. Males can be a striking reddish buff in colour.

This seagrass species is a kind of flowering plant that lives beneath the sea, providing an important habitat for many rare and wonderful species.

The dazzling silver-studded blue is a rare butterfly of heathland habitats, mainly in southern England. It has undergone severe population declines in recent years.

The sand lizard is extremely rare due to the loss of its sandy heath and dune habitats. Reintroduction programmes have helped establish new populations.

The rare Adonis blue can be spotted on sunny chalk grasslands throughout summer. Males are a dazzling sky-blue in colour, while females are duller brown.

The black hairstreak is a rare butterfly that is restricted to woodlands and hedgerows containing blackthorn - the foodplant of the caterpillar. It is both elusive and hard to tell apart from…

Sometimes known as the snipe of the woods, the exquisitely camouflaged woodcock is mainly nocturnal, hiding in the dense undergrowth of woodlands and heathlands during the day.

Considered to be one of the prettiest gentians, the Chiltern gentian is a rare plant in the UK. It likes chalk grasslands, its purple, trumpet-shaped flowers blooming from August.