Wadi El-Hitan in Egypt’s Western Desert contains hundreds of fossilized whale skeletons dating back around 37 million years. These remains preserve a critical stage in whale evolution, showing hind ...

Call it an unfinished story, but with a plot that's a grabber. It's the tale of an ancient land mammal making its way back to the sea, becoming the forerunner of today's whales. In doing so, it lost ...

A biologist explains the surprising evolutionary math behind how the blue whale became the largest animal that has ever lived ...

Dr James Rule (L) and Dr Erich Fitzgerald (R) with the Murray River whale fossil at Melbourne Museum. Credit: Eugene Hyland. Source: Museums Victoria Dr James Rule (L) and Dr Erich Fitzgerald (R) with ...

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 ...

In this illustration provided by Ruairidh Duncan a Janjucetus dullardi is depicted chasing a fish. Ruairidh Duncan / AP WELLINGTON, New Zealand — Long before whales were majestic, gentle giants, some ...

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 ...

Tutcetus rayanensis swimming in the Tethys ocean of present-day Egypt, 41 million years ago, in an illustration. Antarctic blue whales, the largest animals on Earth, can reach 98 feet from mouth to ...

Menopause is a rare trait among Earth's species, observed in only a few, including humans and certain whales. New research suggests the evolution of menopause may be linked to the extended lifespan of ...