Look for the Yellow water-lily in still and slow-moving water, such as ponds, ditches, lakes and canals. Its lily pads and cupped, yellow flowers float at the water's surface.

Found in ponds and marshes, the fragile look of the Common water-measurer belies its fierce nature. A predator of small insects, it uses the vibrations of the water's surface to locate its…

This stunning hermit crab has only returned to our southern shores in recent years. Let us hope it stays for good this time!

Look out for the feathery leaves of Spiked water-milfoil just below the surface of streams, ditches, lakes and ponds; its red flowers emerge from the water in summer. It provides shelter for a…

The chestnut-brown bank vole is our smallest vole and can be found in hedgerows, woodlands, parks and gardens. It is ideal prey for owls, weasels and kestrels.

With a population of 75 million, the field vole is one of the UK's most common mammals. Hidden among the vegetation of grassland, heathland and moorland, it is not as easily spotted as the…