Analysis of single bone may tell us if the platypus is an evolutionary anomaly — starting on land, then returning to water.

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A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding ...

Long known as “No Man's Land,” the Oklahoma Panhandle has only become more interesting—consider these five road-trip stops as proof.

The amphibious platypus has a bill and webbed feet, like a duck, and a beaver-esque tail ... “The typical mammal from the time of dinosaurs probably shared a lot more biology with a monotreme ...

The Everglades' eclectic alligators are surprisingly diverse builders, bodyguards, commuters, and health-bringing engineers.