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…

Found in ponds and marshes, the fragile look of the Common water-measurer belies its fierce nature. A predator of small insects, it uses the vibrations of the water's surface to locate its…

The Common field grasshopper can be found in sunny, grassy areas, particularly gardens, throughout summer. Males can be seen rubbing their legs against their wings to create a 'song' for…

Mae gwenyn mêl wedi bod yn gwneud mêl i bobl ers miloedd o flynyddoedd! Mae’r gwenyn yma sy’n hawdd eu hadnabod yn weithwyr caled, yn byw mewn cychod mawr wedi’u creu o grwybrau cwyr.

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…

Escaped or intentionally freed from fur farms in the 1960s, the American mink is now well established in the UK. Its carnivorous nature is a threat to our native water vole and seabird populations…

The eel is famous for both its slippery nature and its mammoth migration from its freshwater home to the Sargasso Sea where it breeds. It has suffered dramatic declines and is a protected species…

The Leyland cypress, or 'Leylandii', is a notorious tree that has been widely planted for its fast-growing nature. It easily can get out of control, shading gardens at the expense of…

The Oak bush-cricket is arboreal and can be found in mature trees in woods, hedges, parks and gardens in summer. Males don't have a 'song' as such, but drum on leaves with their…

The common spotted-orchid is the easiest of all our orchids to see: sometimes, so many flowers appear together that they create a pale pink carpet in our woodlands, old quarries, dunes and marshes…

The Speckled bush-cricket, as its name suggests, is covered in tiny, black speckles. It can be found in scrub, hedgerows and gardens throughout summer. Males rub their wings together to create a…