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Nature's World Record Holders
Birds
Biggest Bird: The North African ostrich can grow to be 9 feet tall and weigh over 345 pounds. It also lays the largest eggs!

Largest Bird Egg: The North African ostrich's eggs are about 7 inches long and weigh up to 4 pounds. This egg is very strong. It won't break if you stand on it!

Smallest Bird: The Cuban bee hummingbird is about 2 inches long and weighs only .056 ounces. This bird is lighter than a dime!

Fastest Flying Bird: The peregrine falcon has been timed at 217 miles per hour. That's about four times as fast as a roller coaster!

Slowest Flying Bird: The American woodcock can fly as slow as 5 miles per hour without sinking. This one would be easy to catch!

Bird With the Most Feathers: The whistling swan has over 25,000 feathers. More than 20,000 of these are on the head and neck!

Mammals
Biggest Sea Mammal: The blue whale is over 100 feet long and weighs 150 tons. This is more than 200 cows or 1,500 people!

Biggest Land Mammal: The African bush elephant stands 10 feet 6 inches high and weighs 6.5 tons. It eats 250 pounds of plants and drinks 50 gallons of water daily.

Smallest Sea Mammal: The Commerson's dolphin weighs between 50.7 and 77.1 pounds. It is found in the waters off the southern tip of South America.

Smallest Land Mammal: The Kitti's hognosed bat has a wing span of 6.29 inches and weighs between .062 and .071 ounces. It is also known as the bumblebee bat.
Fastest Land Mammal: The cheetah or hunting leopard can run almost 65 miles per hour when going short distances. That's as fast as a car on a typical U.S. highway!

Slowest Land Mammal: The three-toed sloth moves an average of 7 feet per minute. It moves slower than a tortoise!

Longest-Lived Mammal: No other mammal has lived longer than man! The oldest age on record is 120 years!

Reptiles
Biggest Reptile: The marine crocodile grows up to 27 feet long and can weigh 4,000 pounds. It's almost as long as a schoolbus!

Smallest Reptile: Tiny geckos from the Virgin Islands win the smallest award. These reptiles are less than 1.5 inches when fully grown.
Longest-Lived Reptile: Tortoises live the longest out of any animal group. The oldest living tortoises reached just over 200 years old!

Fastest Land Reptile:
The six-lined race runner can run up to 18 miles per hour. It belongs to the lizard family, which is the fastest group of reptiles.

The Longest Venemous Reptile: The king cobra snake may grow to be 19 feet long. It is also called the hamadryad.

