becausebirds: Hummingbirds fly more like insects than like birds, a new study reveals. These tiny birds generate lift on both the upstroke and downstroke of their flapping, unlike other birds that just generate lift on the downstroke. Many hummingbirds
becausebirds: Hummingbirds fly more like insects than like birds, a new study reveals. These tiny birds generate lift on both the upstroke and downstroke of their flapping, unlike other birds that just generate lift on the downstroke. Many hummingbirds
