Robert Wadlow is the tallest man recorded in history. He grew to be eight feet and eleven inches and weighed 490 pounds when he died.

A species of dolphin is born naturally blind in the Indus and Ganges rivers in South Asia. These dolphins have a highly sophisticated sonar system and swim on only one side of their body.

The jaguar, the largest cat in the Western Hemisphere, once lived all over the southern US.

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