Hummingbirds can fly backwards, and are the only group of birds able to do so. They flap their wings rapidly 15-80 times per second. The bee hummingbird is the smallest bird in the world, weighing in between 3 grams and 24 grams.
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Speed
The cheetah is the world’s fastest cat. As a matter of fact, it’s the speediest of all land animals. Cheetahs in full sprint can reach speeds up to 75 mph and they can accelerate faster than most sports cars. It takes a cheetah less than 3 seconds to reach 60 miles per hour. That can make them very difficult to spot!
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