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Ancient frog had a belly full of eggs in oldest fossil discovery of its kind

Frogs have a unique distinction among all living land vertebrates. There are over 6,000 living species of frogs known to scientists, as well as countless extinct species — and yet they all contain roughly the same skeletal body plan. While this is convenient in terms of helping experts classify frogs, it also makes it difficult to understand the biology of skin, inner organs and other soft tissues of extinct frog species....

Originally posted on salon.com