If you spot a crawling shell next time you're at the seaside, take a closer look… it might be a hermit crab!

Barnacles are so common on our rocky shores that you've probably never really noticed them. They're the little grey bumps covering the rocks that hurt your feet when you're…

Ever spotted a honeycomb-like mound on the beach and wondered what it was? It's a reef built entirely by worms!

Ever noticed lots of little white spirals on seaweed fronds on rocky shores? These are tiny tube worms!

The UK's smallest whale, the minke whale, is notoriously inquisitive around boats and is even known to breach clear of the water. Beware though - their fragrant breath has given them the…

In summer, the sedge warbler can be spotted singing from a reed or willow perch in wetlands across the UK. Males never sing the same song twice, adding new phrases to impress the females.

The vast, green mats that sometimes cover the surface of still water, such as ponds, flooded gravel pits and old canals, are actually Common duckweed. A tiny, single plant, it groups together to…

The humpback whale is making a comeback, with more and more individuals being seen in UK seas every year. They are well known for their acrobatic behaviour - so don't be surprised to see them…

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.