Ruby-throated hummingbirds fly non-stop across the Gulf of Mexico to reach the best breeding grounds first. The 600-mile journey takes 15-20 hours, and the birds double their body weight to prepare ...

Hummingbirds are speedy little creatures. Ruby-throated hummingbirds flap their wings at a blurry (and tough to photograph!) rate of 50 times per second, and they can achieve a velocity of 90 feet per ...