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…

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,…

The metallic-green musk beetle lives up to its name: it releases a musky-smelling secretion when it defends itself. It is a longhorn beetle, so has lengthy antennae. Look for it near wetlands in…

The noble chafer is a rare and beautiful metallic-green beetle that can be found in traditional orchards. It is on the wing over summer, feeding on umbellifers. The larvae live in the decaying…

A bright red beetle, with black legs and knobbly antennae, the red-headed cardinal beetle lives up to its name. Look for it in woodland, along hedgerows and in parks and gardens over summer.

The rhinoceros beetle lives up to its name by sporting a distinctive 'horn' on the males' head. This glossy, blue-black beetle can be found in woods, parks and hedgerows, and…

Swifts spend most of their lives flying – even sleeping, eating and drinking – only ever landing to nest. They like to nest in older buildings in small holes in roof spaces.