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

This dashing diving duck is a winter visitor to the UK's seas, coastal lakes and occasionally inland water bodies.

The common prawn is a familiar sight to anyone who has spent time exploring rockpools - particularly their characteristic quick dart into the darkness just as you spot them!

This black and grey solitary bee takes to the wing in spring, when it can be seen buzzing around burrows in open ground.

Piddocks are a boring bivalve. No, we don't mean dull... we mean that it bores into soft rock, creating a burrow. In fact, they're the opposite of dull - they glow in the dark!

Familiar as the bristly plant that easily hooks on to our clothing as we walk through the countryside or do the gardening, cleavers uses its hooks to help it climb and to disperse its seeds.