Rodhocetus gives us a clear example of a species’ evolutionary transition from land-dweller to sea-farer. One of the best-known animals in the Cetacea infraorder (which includes whales, dolphins, and porpoises), Rodhocetus had short limbs ending in webbed hands and feet.

Animal trivia: Rodhocetus, a strange animal in prehistoric times
Animal trivia: Rodhocetus, a strange animal in prehistoric times

Its characteristics closely resemble those of land mammals, thus leading scientists to conclude it was part-way along the evolutionary transition from land to sea.

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