Mae’n hawdd iawn methu’r glas y dorlan trawiadol heb fod yn wyliwr craff iawn! Mae’r aderyn hardd yma’n hawdd ei adnabod diolch i’w liwiau glas llachar a chopr metalig. Mae’n gwibio ar hyd glan yr…

Mae môr-gyllyll yn perthyn i ystifflogod ac octopysau – grŵp o folysgiaid sy’n cael eu hadnabod fel seffalopodau. Efallai eich bod chi wedi gweld y gragen fewnol sialcog, o’r enw asgwrn cyllell,…

The rare Slavonian grebe is an attractive diving bird with distinctive, golden ear tufts that give rise to its American name - 'horned grebe'.

Sea lettuce is unmistakeable - most often a bright green and always translucent, it is found on all UK coasts.

Mae noethdagellogion, sy’n cael eu hadnabod hefyd fel gwlithod môr, yn debyg iawn i’w perthnasau ar y tir a welwch chi yn eich gardd efallai. Ond, yn wahanol i wlithen yr ardd, mae’r noethdagellog…

The Scots pine is the native pine of Scotland and once stood in huge forests. It suffered large declines, however, as it was felled for timber and fuel. Today, it is making a comeback - good news…

The common whelk is the largest sea snail found in UK seas, though you're more likely to find the dry balls of empty whelk egg capsules washed up in strandlines.

A king among birds, the goldcrest displays a beautiful golden crown. Our smallest bird, it can be spotted in conifer woodlands and parks across the UK.

Despite appearances, this weird and wonderful creature is not a jellyfish! They're sometimes found washed up on our shores after westerly winds. Look but don't touch - they give a very…

Golden banks of common rock-rose make a spectacular sight on our chalk and limestone grasslands in summer. A creeping shrub, it is good for bees, moths and butterflies.