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A previously unknown disease that has claimed the lives of dozens in the Democratic Republic of Congo is likely to be malaria, the African Union's health watchdog said Thursday.

The world has been getting hotter for decades but a sudden and extraordinary surge in heat has sent the climate deeper into uncharted territory - and scientists are still trying to figure out why.

The number of people classed as obese in the US has dipped for the first time in more than a decade, giving experts some hope of seeing a reversal in concerning health trends.

Earlier this year, scientists stumbled upon a potential new treatment for hereditary-patterned baldness, the most common cause of hair loss in both men and women worldwide.

Colorectal cancer's characteristic tumors are spurred on by chronic inflammation, and new research shows this might be linked to a diet of ultra-processed foods high in unhealthy oils.

A living time capsule frozen in the depths of Lake Enigma in Antarctica contains a unique ecosystem that has been isolated from the rest of the world since its surface permanently froze.

Twins have been rare in human history and for that reason can seem special.

Before the time of the dinosaurs, a naked, warm-blooded egg-layer known as a gorgonopsian sipped water from Pangea's tropical floodplains amid herb-grazing reptiles off what's now Mallorca in the Mediterranean.

A complete mastodon jaw has been discovered in the back yard of a New York home, along with a few other bits and pieces of the prehistoric herbivore, an extinct relative of modern-day elephants.

From vegetarians craving meat to changes in sexual preference, some organ transplant patients report changes to their personality reflecting those of the organ donor.