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 beautiful moth is often found resting on leaves, though it does also fly during the day.

This sooty-black, day-flying moth is active on sunny days, rarely settling in one place for long.

These large rocky shore fish look like they belong in deeper waters, but they are the find of the day for any rockpooler!

This striking black-and-white moth flies during the day in open woodlands, moorlands, and bogs. It's most common on Scottish moors.

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 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…