Upsetting but strangely satisfying new research documents octopuses punching fish during collaborative feeding sessions. The octopuses primarily do it for practical reasons, but sometimes these underwater jabs seem to be purely spiteful.
Octopuses, with their eight suction-cup-covered tentacles, can taste objects simply by touching them. A team of researchers has finally figured out how these cephalopods are capable of pulling off this remarkable trick.
A species of fire ant can turn tiny grains of sand into a powerful tool for extracting food, in a clever design meant to reduce drowning risk.