This unmistakeable moth, famous for its skull-shaped marking, is a rare visitor to the UK.

These colourful little fish are a delight for snorkellers or shallow water divers to photograph, rarely being scared off by their presence!

Mae'r rhywogaeth yma o siarc main a chain i'w gweld yn aml yn agos at y lan o amgylch ein harfordiroedd a gall dyfu i fod hyd at 6 troedfedd o hyd.

Mae’r ystlum hirglust yn driw i’w enw yn sicr: mae ei glustiau bron mor hir â’i gorff! Cadwch lygad amdano’n bwydo ar hyd gwrychoedd, mewn gerddi ac mewn coetiroedd.

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

Perennial rye-grass is a tufted, vigorous grass of roadside verges, rough pastures and waste ground. It is commonly used in agriculture and for reseeding grasslands.

A small colourful sea slug that can be found grazing on sea mats on the rocky shore and beyond the low water mark.

Their long narrow shells are a common sight on our shores, especially after storms, but the animals themselves live buried in the sand.

The thresher shark is a migratory species and passes through UK waters in the summer months. If you’re lucky, you might see this magnificent shark jump high out of the water in to the air.