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How do trap-jaw ants perfectly time their snaps?

submitted by ant

4 years 1 week ago

"When trap-jaw ants are dropped, before they hit the ground they snap their jaws and fling themselves back up into the air! How do they manage to perfectly time their snaps to do that? Why do they do it? It's all thanks to 4 little hairs that stick out of their mouths called 'trigger hairs'!"