An illustration of German-born fossil collector Albert Koch's "Hydrarchos" as it appeared on display. From Fowler, O.S. 1846. The American Phrenological Journal and Miscellany, Vol. 8. New York: ...

For tens of millions of years, whales have been a part of the oceans. Because of this, it would be easy to believe that whales evolved from aquatic creatures as the oceans warmed and became more ...

In Egypt’s Wadi Al-Hitan, also called Whale Valley, over 400 fossilized whale skeletons lie preserved in the Sahara’s sand. These 37-million-year-old remains show how whales evolved from land mammals ...

Alfred the aetiocetid had teeth but needed a better way to capture his tiny prey. Credit: Carl Buell Baleen whales, such as the gigantic 30m-long blue whale, are the largest animals that have ever ...

WELLINGTON, New Zealand (AP) — Long before whales were majestic, gentle giants, some of their prehistoric ancestors were tiny, weird and feral. A chance discovery of a 25 million-year-old fossil on an ...