CARL ZIMMER

A new model suggests that in 250 million years, all land will collide into a supercontinent that boosts warming and pushes mammals to extinction.

Scientists have unearthed logs in Africa that are nearly a half-million years old, the remnants of large wooden structures crafted by our early ancestors.

The population crashed following climate change about 930,000 years ago, scientists concluded. Other experts aren’t convinced by the analysis.

The analysis marks the first time historical DNA has been used to trace the descendants and distant cousins of enslaved people, researchers said.

Perucetus drifted through shallow seas like a gigantic manatee, scientists suspect.

Scientists are revisiting an influential theory that the evolution of big brains made human childbirth risky.

Scientists revealed the results of experiments testing how our brains give rise to conscious thought — and ended a 25-year-old bet.

Four teams have coaxed human stem cells to organize themselves into embryo-like forms. The advance could shed light on fertility.

Homo naledi, despite having tiny brains, may have lit fires and decorated walls around the graves of their dead, according to controversial new research.

It took 150 million years for feathered dinosaurs to master flight and become the birds we see overhead today.