Alex Hyde / Aposematism describes the use of bright colouration and bold patterns to advertise that an organism is unpalatable or dangerous. All three insects are foul-tasting or toxic if eaten: Wood Tiger moth...

Andy Rouse / Atlantic puffin (Fratercula arctica) by burrow, carrying unpalatable pipefish for chick due to Sand eel over-fishingm, Fair Isle, Shetland, UK

Andy Rouse / Atlantic puffin (Fratercula arctica) carrying unpalatable pipefish for chick due to Sand eel over-fishing, Fair Isle, Shetland, UK

Piotr Naskrecki / Nymphalid Butterfly (Pteronymia sp) males collecting toxic plant metabolites used to produce pheromones and to make their bodies unpalatable, Brazil