In a rainforest in Panama, a baby hummingbird scared off a wasp by behaving like a poisonous caterpillar. That tiny bird, a white-necked jacobin (Florisuga mellivora), has given scientists the first clear record of caterpillar-style mimicry in a…

In a rainforest in Panama, a baby hummingbird scared off a wasp by behaving like a poisonous caterpillar. That tiny bird, a white-necked jacobin (Florisuga mellivora), has given scientists the first clear record of caterpillar-style mimicry in a…