Sleepy Hummingbirds

January 1, 2007 by  
Filed under Features

Hummingbirds have incredibly busy days. Their heart is beating 1000 times a minute. This gets even mo repaid after the hummingbird starts flapping its wings 10-80 beats a second! In addition to buys days, hummingbirds need to keep their body temperature as high as 104 degrees Fahrenheit (or 40 degrees Celsius).

Read more