These colourful little fish are a delight for snorkellers or shallow water divers to photograph, rarely being scared off by their presence!

A breeding bird of fast-flowing, upland rivers, the grey wagtail can also be seen in lowland areas, farmyards and even towns in winter.

Cross-leaved heath is a type of heather that likes bogs, heathland and moorland. It has distinctive pink, bell-shaped flowers that attract all kinds of nectar-loving insects.

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

Their long narrow shells are a common sight on our shores, especially after storms, but the animals themselves live buried in the sand.

Violet ground beetles are active predators, coming out at night to hunt slugs and other invertebrates in gardens, woodlands and meadows.

This long-lived bivalve can be found buried in the sand on the south and west coasts of the UK.

Look for the star-like, feathery, white flowers of Bogbean in ponds, fens, bogs and marshes. It is so-named because its leaves look like those of broad beans.

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.

The all-black rook is a sociable bird, so can be spotted in flocks or nesting colonies, known as 'rookeries'. Unlike the similar carrion crow, it has a grey bill and 'baggy trouser…