Trap-jaw ants can launch themselves backward with their own jaw snaps

Evidence

In the trap-jaw ant, soldier jaws are long and curved, with sharp teeth. These ants use a lock-and-release mechanism of jaw closure quite similar to the appendage strike of the mantis shrimp. Jaws of this ant can close at speeds of up to 143 miles per hour, snapping from completely open to shut in less than a thousandth of a second. These jaws are so fast that if the ants snap their jaws when their faces are aimed against the ground, they can launch themselves backward twenty body lengths into the air—which turns out to be a very effective escape tactic. — Emlen, Douglas J, Animal Weapons_ The Evolution of Battle, 130