The ptarmigan is a master of disguise - matching its Highland surroundings perfectly by turning snow-white in winter and rock-grey in summer. It is confined to the mountains of Scotland, so is…

The Sitka spruce was introduced into the UK from North America in the 19th century. It has been widely planted as a forestry tree; look for classic needle-like leaves and pale brown, domed cones…

This elegant wader is silvery grey in winter but turns black in summer!

This elegant wader is an uncommon autumn visitor, often joining flocks of dunlin.

Mae’n bur debyg eich bod chi wedi gweld llawer o wiwerod – ond ydych chi wedi gweld un goch? Mae gwiwerod coch yn frodorol i’r DU ond yn llawer prinnach na’u cefndryd llwyd! Maen nhw’n byw mewn…

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 sea snail is abundant on rocky shores around the UK. It is an active predator, feasting on mussels and barnacles before retreating to crevices to rest.

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

The defensive mechanism of the pill woodlouse is very recognisable - it curls itself into a tight ball, only showing its plated armour to its attacker. It is an important recycler of nutrients,…

This slender and elegant shark species is often found close to shore all around our coasts and can grow up to 6 feet long.

The shy and retiring bittern is a master of blending in and can be very difficult to spot in its reedbed home. It does sound like a booming foghorn, however, when it calls, so can often be heard…