Butterfly stripes can send motion signals the wrong way
A wingbeat can emphasize movement opposite to the insect’s flight, helping explain why conspicuous butterflies can be difficult to track.
Continue reading →The archive
animal behavior
A vanishing neighbor can send tiny glassfish fleeing
Virtual schools and recordings from thousands of neurons show how glassfish can react to danger they never directly saw.
Continue reading →The bat behind turns first
Tracking ghost-faced bats in tandem flight reveals the timing of an overtake—and the limits of what a flight path can tell us about an animal’s intentions.
Continue reading →When does helping a young chimpanzee become a lesson?
Two remarkable encounters in Senegal show how scientists can identify teaching by its effects without pretending to know exactly what an animal intended.
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