Living up to its name the Common blue damselfly is both very common and very blue. It regularly visits gardens - try digging a wildlife-friendly pond to attract damselflies and dragonflies.

The smaller of our two UK seal species, common seals are also known as harbour seals. Despite being called "Common", they are actually less common than grey seals!

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…

He loves me, he loves me not' is a familiar rhyme associated with what is probably our most well-known plant: the common daisy. Its white-and-yellow flower heads brighten up lawns, verges and…

The Common walnut tree produces a large, brown nut that is familiar to so many of us. It is an introduced species in the UK, and can be seen in towns, gardens and parks.

Despite its name, the common gull is not as common as some of our other gulls. It can be spotted breeding at the coast, but is also partial to sports fields, landfill sites and housing estates in…

The fearsome common backswimmer hunts insects, tadpoles and fish. It uses its oar-like legs to swim upside-down under the water's surface where unsuspecting prey can be found.

This common fungus puffs out clouds of spores when it's mature.