Discover the Meaning Behind These Popular Valentine's Day Flowers. Here's how to send the right romantic message with your bouquet this Valentine's Day.
The smallest hummingbird is the bee hummingbird which only weighs a little less than two grams. The largest hummingbird is known as the giant hummingbird and it weighs between 21 and 23 grams. According to hummingbird expert Laura Erickson, you could mail nine or ten hummingbirds with a single stamp!
Anna's Hummingbird wings beat about 40-50 times per second in normal flight. 30% of a hummingbird's weight consists of flight muscles. Hummingbirds fly about 25mph in normal flight and up to 40mph in a courtship dive. The heart beats about 250 times per minute while at rest, about 1,220 per minute while flying, but slows to 50 beats per minute at night (this is called torpor).