Ein hunig neidr wenwynig, gellir gweld y wiber swil yn torheulo yn yr heulwen mewn llennyrch mewn coetiroedd ac ar rostiroedd.

A common and diminutive fish, the minnow can be found in freshwater streams, rivers and lakes across the country. Look out for the dark stripe along its flank and the red bellies of the males.

Field wood-rush is a short rush that forms tufts in grassy places, such as lawns, parks and downlands. A defining characteristic is its leaf-like leaves that are fringed with long, white hairs.…

Found along the coast all year-round, the dunlin is a small sandpiper that breeds and winters in the UK. It can be seen in its upland breeding grounds in summer, when it turns brick-red above and…

Freshwater pearl mussels spend their adult lives anchored to the river bed, filtering water through their gills and improving the quality of the water for other species.

If you have a garden pond, look out for the Large red damselfly resting at the water's edge. As the name suggests, males are bright red with a black thorax, but females may be almost entirely…

Ever wondered what that little black dot whirling in circles on the top of the water of a pond is? Those are whirligig beetles! Often seen shooting across the water surface on the hunt for its…

Horsehair worms are parasitic worms of the clade Nematoida alongside their sister taxa Nematoda, the roundworms. The most famous trait of certain species of horsehair worms is the ability to alter…

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, and can be seen in towns, gardens and parks.