National Insect Week returns in 2020
Free resources from Opal Air Laboratories (OPAL) to help you identify some common British plants and animals.
Includes identification guides and surveys for dragonflies, freshwater invertebrates, moths and common invertebrates.
There are lots of contenders here – possibly the pretty red and blue rove beetle Paederus – very, very tiny amounts of its poison have been used to cure chronic ulceration in people. Ladybirds are pretty poisonous (and pretty) and can bleed foul-tasting poisonous brightly coloured blood from their knees.