Y mochyn daear yw’r ysglyfaethwr tir mwyaf yn y DU ac mae’n un o rywogaethau enwocaf Prydain. Mae’n enwog am ei streipiau du a gwyn a’i gorff cryf, ac mae’n defnyddio ei bawennau blaen cryf i…

Mae gwenoliaid duon yn treulio’r rhan fwyaf o’u bywydau yn hedfan – gan hyd yn oed gysgu, bwyta ac yfed wrth hedfan – gan lanio i nythu yn unig. Maen nhw’n hoffi nythu mewn hen adeiladau mewn…

The little grebe is a fantastic diver, but to help it swim underwater, its feet are placed towards the back of its body, making it rather clumsy on land. It only really comes ashore to breed.

A breeding bird of fast-flowing, upland rivers, the grey wagtail can also be seen in lowland areas, farmyards and even towns in winter.

The common octopus is a highly intelligent, active predator. It even has a secret weapon - special glands produce a venom that it uses to incapacitate its prey!

Selfheal is a low-growing, creeping plant that likes the short turf of grasslands, roadside verges or even lawns. Its clusters of violet flowers appear in summer.

A voracious predator that will even eat other dragonflies, the golden-ringed dragonfly is the UK's longest species. It can be found around acidic streams in moorland and heathland habitats.…

The soft, downy look of Yorkshire-fog makes it an attractive plant, even if it is considered a weed of cultivated land! It is also attractive to the caterpillars of the Small Skipper butterfly as…