Deep Look

The Bombardier Beetle And Its Crazy Chemical Cannon

Season 2 Episode 16 | 2m 46s

When attacked, this beetle sets off a rapid chemical reaction inside its body, sending predators scrambling. This amazing chemical defense has some people scratching their heads: How could such a complex system evolve gradually—without killing the beetle too?

Aired: 08/22/16

Rating: NR

Video has closed captioning.

Problems Playing Video?