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.

The Forestry Commission say the caterpillars and their nests contain hairs which can cause rashes.

The Norfolk Wildlife Trust says they are likely to be a type of micro ermine moth caterpillar.