The smallest bird in the world is the Hummingbird. It weighs 1oz.
The fastest human swimmer can swim at 6 miles per hour. The fastest mammal - the dolphin - can swim up to 35 miles per hour.
Did you know there are two kinds of pandas? There is the Long-tailed Himalayan carnivore that looks like a raccoon and there is the Giant panda bear that lives in Western China.