One of the most colourful fish in UK seas, the cuckoo wrasse looks like it belongs in the tropics. Don't be fooled though, it's very much a native species.

Often spotted in large flocks, the fieldfare is an attractive thrush. It is a winter visitor, enjoying the feast of seasonal berries the UK's hedgerows, woodlands and parks have to offer.

A bushy brown seaweed that appears bright blue underwater.

Gwaith gwahaddod yw’r sypiau brown o ddaear sy’n gallu addurno lawnt. Mae’r mamal brown, byrdew yma’n treulio ei oes yn creu tyllau o dan y ddaear gyda phawennau siâp rhaw, yn hela am bryfed…

This beautiful orange and brown butterfly is now a rare sight in the UK

This large, brown beetle can be seen swarming around streetlights in spring. They live underground as larvae for years and emerge as adults often in large numbers. Listen for their characteristic…