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Caribbean frogs started with a single, ancient voyage on a raft from South America
06-06-2007 · EurekAlert!Nearly all of the 162 land-breeding frog species on Caribbean islands originated from a single species that rafted on a sea voyage from South America about 30-to-50-million years ago, according to a DNA-sequence-analysis study. The discovery is surprising because no previous theories of how the frogs arrived had predicted a single origin and because groups of close relatives rarely dominate the fauna of an entire continent or major geographic region.
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Keywords: caribbean, frogs, started, single, ancient, voyage, raft, south, america, frog
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06-08-2007 · EurekAlert!
Nearly all of the 162 land-breeding frog species on Caribbean islands, including the coqui frogs of Puerto Rico, originated from a single frog species that arrived on a sea voyage from South America. They came 30 to 50 million years ago, according to DNA-sequence analyses by scientists at Penn State.
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