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(Raul Martin)

The Prehistoric Giants Hall of Fame

What were the largest species of all time? Does the Tyrannosaurus rex make the list?

Largest frog

Frog
(Luci Betti-Nash / Stony Brook University)
Today’s largest frog, the 13-inch-long goliath frog, is an imposing amphibian. But the recently described Beelzebufo was even bigger. This frog, discovered in the 70-million-year-old rock of Madagascar, measured about 16 inches long and may have weighed more than 10 pounds.

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