These non-native limpets arrived from America in the 19th century and are now widespread in the UK. They form stacks and have a specially adapted shell which, when flipped upside down, looks like…

The aromatic fragrance of Large thyme can punctuate a summer walk over a chalk grassland. It is an evergreen that grows low to the ground, with erect spikes of tiny, lilac flowers appearing over…

The chocolate-brown, plump dipper can often be seen bobbing up and down on a stone in a fast-flowing river. It feeds on underwater insects by walking straight into, and under, the water.

Found almost everywhere, the large yellow underwing is a night-flying moth that is often attracted to lights. It is brown with orangey-yellow hindwings.

The keeled skimmer is a dragonfly of heaths and commons with shallow pools. It has a skittish and weak flight, and is on the wing in summer and early autumn.

If you have a garden pond, look out for the large red damselfly resting at the water's edge. As the name suggests, males are bright red with a black thorax, but females may be almost entirely…

The black-tailed skimmer is a narrow-bodied dragonfly that can be seen flying low over the bare gravel and mud around flooded gravel pits and reservoirs. It is on the wing from May to August.