Yr wylan gefnddu fwyaf yw’r wylan fwyaf yn y byd! Oherwydd ei maint, ychydig o ysglyfaethwyr sy’n ceisio ymosod arni, ond gall fod yn fyrbryd blasus o dro i dro i eryrod cynffon gwyn, siarcod a…

This tiny wading bird is most often seen in autumn, feeding on the muddy margins of wetlands.

The tawny mining bee is a furry, gingery bee that can often be seen in parks and gardens during the springtime. Look for a volcano-like mound of earth in the lawn that marks the entrance to its…

This wading bird is mainly a visitor on its spring and autumn migration, though a small number nest in Scotland.

This huge gull can be seen around most of the UK's coasts in summer, with some venturing inland in winter.

The porbeagle shark is a member of the shark family Lamnidae, making it one of the closest living relatives of the great white shark.

The scorpionfly, as its name suggests, has a curved 'tail' that looks like a sting. It is, in fact, the males' claspers for mating. It is yellow and black, with a long 'beak…

Chinese water deer are easily distinguished from other deer by their strange teddy bear like appearance and the huge canine tusks displayed by the stags.

This birch-loving moth can be seen flying on sunny days in early spring.