The human race devised all sorts of outrageous ways to incorporate animals into conflict as long as we've been getting into armed scuffles. The video below tells the history of one especially batsh*t military invention: the bat bomb.
Created by the US military during WWII to combat Japan, the bat bomb combined the destructive power of incendiary devices with the dispersion powers of Mexican free-tailed bats.
The only thing that outranked the project's weirdness was its effectiveness. Because most Japanese structures and buildings at the time were built with wood and therefore susceptible to fires, the bombs proved to be devastatingly destructive.
These bombs would likely have ended up making a much larger impact during the war had the atomic bombs never been developed. Watch the video below to learn more about a weapon that sounds like a Batman gadget but is far more sinister and destructive.