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The extinct Beelzebufo Ampinga, or "Devil Frog" is consider by scientist the world's largest frog that ever lived. It lived in Madagascar 65 to 70 million years ago and can grew to 16 inches in length and weighed about 10 pounds.

These largely terrestrial frogs may have been as ill-tempered and aggressive as their living relatives, the ceratophyrines of South America, scientists say. Ceratophyrines are nasty sit-and-wait predators that are eager to snap at just about anything that happens by, experts note. The ancient devil frogs may have snatched lizards, small vertebrates, and possibly even hatchling dinosaurs with their huge mouths and powerful jaws.

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