Killer whale (Orcinus orca) wave washing

Triangle-weaver spider (Hyptiotes cavatus) trap springing

Arabian babbler (Argya squamiceps) caterpillar preparing

Testate amoeba (Cryptodifflugia oviformis) weapon use

Archerfish (Toxotes spp.) water jetting

Wild bonobo (Pan paniscus) water scooping

Terrestrial hermit crab (Coenobitidae) trash shells

Or, why you get mad at your printer…

Sea urchin (Echinoidea) debris wearing

House wren (Troglodytes aedon) spider egg collecting

Dung beetle (Scarabaeus lamarcki) heat regulating

Burrowing owl (Athene cunicularia) dung baiting

Cleaner fish (Labroides dimidiatus) self-recognition

Long-tailed macaque (Macaca fascicularis) clam opening

Palm cockatoo (Probosciger aterrimus) leaf clamping

Black-crowned night heron (Nycticorax nycticorax) twig fishing

Early reports of ape (Pan, Gorilla, Orangutan) tool-use

Western chimpanzee (Pan troglodytes verus) honey dipping

Wood mouse (Apodemus sylvaticus) way-marking

Pygmy octopus (Paroctopus cthulu) litter use