Mae'r gweirlöyn brych yn ffafrio golau haul brith rhodfeydd ac ymylon y coetir, gwrychoedd a hyd yn oed gerddi. Er gwaethaf ei ddirywiad, mae ei amrediad wedi lledaenu yn ystod y blynyddoedd…

This small, white heron is an increasingly common sight in parts of the UK as it spreads north from continental Europe.

It’s easy to identify this distinctive skate from the black and yellow marbled eye spots on each wing.

The enigmatic golden eagle disappeared from England and Wales in the 19th century due to severe persecution. Scottish birds suffered from the use of pesticides in the 20th century. Luckily, golden…

This brown seaweed lives in the lower shore and gets its name from the serrated edges to its fronds.

This colonial creature looks like an old-fashioned quill - that's where the name sea pen comes from.

The Bird's-nest orchid gets its name from its nest-like tangle of roots. Unlike other green plants, it doesn’t get its energy from sunlight. Instead, it grows as a parasite on tree roots, so…

The black sea bream really is a fascinating fish. From sex changes to nest building, this fish is full of surprises!