Fossil of bowling-ball sized frog found in Madagascar | News | timesargus.com
How Female Frogs Fight Off the Mating Ball - The New York Times
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South African Rain Frog - Fattest Round Ball of Frog - FactZoo.com | Frog, Amazing frog, Amphibians
Royal Institution of Great Britain - Is this the grumpiest animal in the world? 🐸 Meet the desert rain frog. It's a tiny frog the size of a ping pong ball, native