A bushy brown seaweed that appears bright blue underwater.

A tall plant, Rosebay willowherb is a successful coloniser; it can form dense stands of bright pink flower spikes on disturbed ground, such as woodland clearings, verges and waste ground.

This small, round sea urchin is (unsurprisingly!) green in colour and can be found on rocky shores around the UK.

A delicate wader, Red-necked phalaropes are as comfortable swimming as they are on land. Unusually for birds, the females are more brightly coloured than the males.

Despite its dazzling colouration, this fabulous nudibranch can be easily missed, due to its small size!

There are several species of cucumber spider, recognised by their bright green abdomen.

The grayling is one of our largest brown butterflies and a master of disguise - its cryptic colouring helps to camouflage it against bare earth and stones in its coastal habitats and on inland…

This large shrike visits the UK in small numbers each year, passing through on migration or spending the winter here.

This small finch nests on moorlands and coastal crofts, spending the winter on the coast. The UK population has declined dramatically.