The fearsome common backswimmer hunts insects, tadpoles and fish. It uses its oar-like legs to swim upside-down under the water's surface where unsuspecting prey can be found.

Also known as 'Scorpion-grass' because of the curved 'tail' at the end of its stems, Water forget-me-not is a distinctive plant of damp habitats. Over summer, it produces…

Pushing its way up through the cracks in pavements, the straw-coloured flower spikes of greater plantain or 'broadleaf plantain' are a familiar sight. This 'weed' also pops up…

A very rare ant, once found on heathland across southern England but now restricted to Scotland and Devon. It constructs distinctive thatched nests in open areas at the edges of scrub, and forages…

The small, shaggy-furred whiskered bat roosts in all sorts of houses, old or modern. It is similar to the Brandt's bat and they often roost together, but in separate colonies. It feeds along…

The pungent, rotten smell of Black Horehound makes this medium-sized plant of waste ground and roadside verges stand out from the crowd.

The stone loach is notoriously hard to spot - not only is it mostly nocturnal, it is also well camouflaged and can partially bury itself in the riverbed. It uses its whisker-like barbels to find…

The St Mark's fly is small, black and shiny. It is so-called because it emerges around St Mark's Day, April 25th. Large numbers of adults can be found in woodland edges, hedgerows,…