Mae’r aderyn bach dirgel yma’n adnabyddus am ei gri iasol ac ar un adeg, cafodd ei gamgymryd am wrachod gan fôr-ladron oddi ar arfordir Cymru! Mae’n teithio miloedd o filltiroedd bob blwyddyn i…

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 brightly coloured and easily recognizable fish is one of three gurnard species found in UK seas. Collectively, gurnards are known as sea robins.

Beavers are the engineers of the animal world, creating wetlands where wildlife can thrive. After a 400-year absence, beavers are back in Britain!

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

Named for its three bull-like horns, the minotaur beetle is a large dung beetle found on grassland and heathland. Adults drag dung back to their nests for their larvae to feed on.

Also known as the 'green drake mayfly', the common mayfly can be found around unpolluted wetlands, such as lakes and rivers. It has transparent, lacy wings and three long 'tails…