The lightbulb sea squirt is common around much of the UK. Its easy to see where its name came from!

This well-camouflaged woodpecker used to be a common breeding bird in Britain, but is now only likely to be seen passing through on migration.

The small white is a common garden visitor. It is smaller than the similar large white, and has less black on its wingtips.

The house sparrow is a familiar, streaky brown bird of towns, parks and gardens. Males sport a grey cap and black bib, the size of which indicates their status.

This striking black-and-white moth flies during the day in open woodlands, moorlands, and bogs. It's most common on Scottish moors.

One of the most eye-catching sights on the rocky shore, this mind-boggling species resembling a collection of beautiful pressed flowers is actually a colony of individual animals!

This crab is common around all of the UK. If you've ever been rockpooling or crabbing, it's probably the shore crab that you've met.

Found in compost heaps and under stones in gardens, the flat-backed millipede is a common minibeast. It is an important recycler of nutrients, feeding on decaying matter.

This common hoverfly is often seen visiting flowers. It's named for its stripy thorax, which looks a bit like a football shirt.