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

A voracious predator that will even eat other dragonflies, the golden-ringed dragonfly is the UK's longest species. It can be found around acidic streams in moorland and heathland habitats.…

The thresher shark is a migratory species and passes through UK waters in the summer months. If you’re lucky, you might see this magnificent shark jump high out of the water in to the air.

Many of us have felt the painful bite of the Twin-lobed deer-fly (a 'horse-fly') while out walking in damp grasses or woods. But mostly, it prefers to feed on the blood of cows and…

The black-headed gull is actually a chocolate-brown headed gull! And for much of the year, it's head even turns white. Look out for it in large, noisy flocks on a variety of habitats.

The hare's ear is a cup-like fungus that grows in clusters in broadleaved and mixed woodland, often near to the path. Its orange colour makes it quite conspicuous in the leaf litter.

The emperor dragonfly is an impressively large and colourful dragonfly of ponds, lakes, canals and flooded gravel pits. It flies between June and August and even eats its prey on the wing.

Despite appearances, the slow worm is actually a legless lizard, not a worm or a snake! Look out for it basking in the sun on heathlands and grasslands, or even in the garden, where it favours…