Yn gwibio o gwmpas y tŷ yn yr haf, mae'r copyn heglog, brown yn gyfarwydd i lawer ohonom. Mae’n ffynhonnell fwyd werthfawr i lawer o adar.

This stocky, brown mammal spends its life burrowing underground with its spade-like paws, hunting for earthworms to eat.

This bog-loving butterfly is mostly found in the north of the UK, where it takes to the wing in summer.

Flitting about the house in summer, the gangly, brown daddy longlegs is familiar to many of us. They are a valuable food source for many birds.

This brown seaweed lives in the mid shore and looks a bit like bubble wrap with the distinctive air bladders that give it its name.

This beautiful butterfly is one of our rarest, now mostly restricted to the western parts of the UK.

The common walnut tree produces a large, brown nut that is familiar to so many of us. It is an introduced species in the UK, found in towns, gardens and parks.