Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved. A spectacular fossil graveyard reveals a 43-million-year-old whale that had four legs and could walk. Follow ...

Whales, the ocean's largest creatures, were once land-dwelling animals that walked on four legs. Around 50 million years ago, their ancestors roamed the shores, evolving into the marine giants we know ...

Early ancestors of the ocean's biggest animals once walked on land. Follow their extraordinary journey from shore to sea. Although whales are expert swimmers and perfectly adapted to life underwater, ...

Whales, the majestic giants of the ocean, have a remarkable evolutionary history that dates back over 50 million years. Once land-dwelling creatures that walked on four legs, these marine mammals ...

The earliest whales are said to have roamed the Earth 50 million years ago. Despite what you may think, the earliest ancestor of the whale was a land-walking mammal called the Pakicetus. Even though ...

A comparison of the third molars from three species of Pakicetus as viewed from the back. (From Cooper et al., 2009) Such iconography is not entirely wrong. We know that living whales are the ...

The story of whales did not begin in the seas. For millions of years before beasts like the sinuous Basilosaurus lived full time in the ocean, the shorelines and estuaries of prehistoric Earth were ...