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Lucy lived in a wide range of habitats from northern Ethiopia to northern Kenya. Researchers now believe she wasn't the only australopithecine species there.

The "King Solomon" pendant likely belonged to a cavalry soldier stationed at the ancient Byzantine city of Hadrianopolis.

An ancient inscription decorated with lions and sphinxes is finally deciphered, and it involves the "mother of the gods."

A solitary dolphin in the Baltic Sea has been recorded talking to himself, leading researchers to wonder whether he's lonely and calling out for friends.

Why aren't the solstices the coldest and hottest days of the year?

Gray hair is often a sign of aging, but is it possible to delay its advance or reverse the color change?

From delicate dandelions to mighty oak trees, millions of plants use seeds to reproduce. But where did the first seeds come from?

Stress can shape how memories are formed, a study in mice suggests. The findings could point the way to future treatments for PTSD and anxiety.

Immune cells produced during severe COVID-19 infection may shrink tumors. The unexpected mechanism offers a new therapeutic possibility for advanced and treatment-resistant cancers.

Doctors write case reports to help call rare conditions to the attention of their peers, or to highlight patients whose diagnoses ended up being a bit of a puzzle. Case reports can shed light on emerging trends, hinting at when a condition might be becoming more common. They can also…

The wheel was likely invented around 6,000 years ago, but a new analysis of curious rocks from Israel suggests that wheel-like technologies existed even earlier.