With tiger-like stripes, red fins and a humped back, the perch is a striking fish. It can be seen in lowland waterbodies and waterways across the UK, often in shoals.

The European larch was introduced into the UK from Central Europe in the 17th century. Unusually for a conifer, it is deciduous and displays small, greeny-red cones on brittle twigs.

Mae gwenyn meirch yn gyfarwydd iawn ond er hynny, dydyn nhw ddim yn boblogaidd iawn! Ond rhowch siawns i’r ffrindiau du a melyn yma, oherwydd maen nhw’n beillwyr pwysig a hefyd yn dda iawn am…