The wasp that never cries wolf
European paper wasps (Polistes dominula) advertise the size of their poison glands to potential predators, finds a new study published in BioMed Central's open access journal Frontiers in Zoology. The brighter the colour, the larger the poison gland.
Aposematism is used by many different animals to warn potential predators that they are poisonous. Usually this takes the form of distinctive colouration or patterns which predators quickly learn to avoid. Paper wasps have conspicuous yellow and black patterns covering their bodies and researchers from University of Granada ...

