Caterpillars

It is not a frosty winter's morning or a Halloween scene, but a creation caused by caterpillars.

Alarmed at declining numbers of the insects, conservationists are asking gardeners to keep grass long.

Two wildlife charities are recruiting volunteers to help spot the creatures using ultraviolet lights.

A drug found in the fungus is "a good starting point for novel cancer medicines", a scientist says.

The webbing can be found on trees in St George's park in Bristol.

Box tree caterpillars are the larvae of a moth that feeds on box plants.

Fewer caterpillars means fewer "beautiful, charismatic butterflies", a researcher says.