Most animals that hunt or defend themselves with projectiles use liquids, from vomit to venom. But some attack with solid weapons, such as a tarantula's barbed hairs. Porcupines aren't on the list of sharpshooters because they can't actually shoot their quills—that's just a popular myth.
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Key Facts In This Video
The archer fish makes a "gun barrel" in its mouth by pressing its tongue against a specialized groove. 00:19
Archer fish adjust their aim to account for how light bends at the water's surface. 01:08
The velvet worm shoots its threads of glue up to 1 meter to ensnare prey. 02:29