Scientists aren’t exactly sure how butterflies evolved this way, but evidence suggest that these ears might be evidence that bats created butterflies by driving moths into the daylight. The idea is that with the evolution of bat echolocation, moths had to find some way of avoiding the predator’s jaws.
The hope is that as the fly walks across the surface, its little body charges up, allowing poisonous spores to stick to its body like metal shavings to a magnet. If this happens, then soon enough, the fly will walk no more.
Why aren't airliners equipped with parachutes? That question is answered on this Moment of Science.
Contrary to popular belief, you don’t have to have fruit in your house to have fruit flies. All you need is fermenting organic matter that remains wet or moist. Most likely, that’s going to mean drains–sinks, showers, etc. In particular, fruit flies tend to breed in slow-moving or seldom-used drains in which a layer of slime has built up.
Say you load a plane with 2,000 lbs worth of birds. If the birds fly in circles inside the plane, will it be able to take off? Find out on Moment of Science.