Mae'r morgi brych yn ysglyfaethwr nosol, yn hela pysgod llai yn agos at wely'r môr.

Cotoneaster was introduced to the UK in 1879 from Eastern Asia as an ornamental plant. It is now an invasive non-native species which is taking over valuable habitats including limestone…

The grayling is one of our largest brown butterflies and a master of disguise - its cryptic colouring helps to camouflage it against bare earth and stones in its coastal habitats and on inland…

Introduced from Japan in the 19th century, Japanese knotweed is now an invasive non-native plant of many riverbanks, waste grounds and roadside verges, where it prevents native species from…

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…

Efallai mai’r pedryn drycin yw aderyn môr lleiaf Prydain, ond mae ei ffordd o fyw drawiadol yn gwneud iawn am ei faint yn sicr! Mae’n treulio’r rhan fwyaf o’i amser ar y môr, gan ddychwelyd i’r…