Mae pathew y cyll yn greadur anodd ei weld – nid yn unig mae’n dod allan yn y nos, ond hefyd dim ond mewn ychydig iawn o lefydd yn y DU mae i’w weld. Mae pathewod yn treulio llawer o’u hamser yn…

Bilberries appear in summer and early autumn and are often turned into jams, pies and sauces...

One of the longest seaweeds native to the UK, thongweed helps create a beautiful underwater forest to rival that of any on the land!

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

The whooper swan is a very rare breeding bird in the UK, but has much larger populations that spend winter here after a long journey from Iceland. It has more yellow on its yellow-and-black bill…

With a torpedo-shaped body and long, narrow wings, the privet hawk-moth is a striking garden visitor. But the caterpillars really stand out: lime-green, with purple streaks and a black hook at the…

Wedi’i gyflwyno o Japan yn y 19eg ganrif, mae canclwm Japan yn blanhigyn estron ymledol bellach ar lawer o lannau afonydd, tiroedd diffaith ac ymylon ffyrdd, lle mae’n atal rhywogaethau brodorol…

This is a predominantly subtidal species but can be found on the lowest parts of a sheltered rocky shore in summer.

This streaky brown bird is a summer visitor to Britain, favouring open woodlands in the north and west.

This large fern thrives in damp places.