The eel is famous for both its slippery nature and its mammoth migration from its freshwater home to the Sargasso Sea where it breeds. It has suffered dramatic declines and is a protected species…

This glossy wading bird is a scarce visitor to the UK, though records have become more common in recent decades.

This wading bird is mainly a visitor on its spring and autumn migration, though a small number nest in Scotland.

With a silvery body, and purple, pink and bluish streaks down its flanks, the rainbow trout lives up to its name. Popular with anglers, it is actually an introduced species in the UK.

Wavy hair-grass lives up to its name: its fine, hair-like leaves and delicate flower heads can be seen shaking in the breeze of a windswept moorland or heathland.

The bluefin tuna is a highly migratory fish which roams the oceans. This species will cross oceans, travelling between the Mediterranean Sea and the Gulf of Mexico. They are speedy swimmers,…

A summer visitor to the UK, the red-tailed redstart is a robin-sized bird that can be spotted in woodlands, parks and hedgerows, mainly in the north and west of the UK.

This well-camouflaged woodpecker used to be a common breeding bird in Britain, but is now only likely to be seen passing through on migration.

The brown long-eared bat certainly lives up to its name: its ears are nearly as long as its body! Look out for it feeding along hedgerows, and in gardens and woodland.