Chemicals in the tooth enamel of Australopithecus suggest the early human ancestors ate very little meat, dining on vegetation instead.

One of the most extreme megadroughts has helped fuel wildfires in Los Angeles County and elsewhere in California.

Since early 2024, the U.S. has logged 66 human cases of H5N1. Scientists are keeping a watchful eye on the virus’s spread as we enter a new year.

An exoplanet about 800 light-years away is spilling its guts into space, and new observations with the James Webb Space Telescope, or JWST, have let astronomers read the entrails, astronomers report ...

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The current way to produce antivenoms is antiquated. Experiments in mice suggest that an artificial intelligence approach could save time and money.

Members of a Stone Age culture in Denmark may have ritually buried stones to counter the effects of a volcanic eruption.

Evidence that the synthetic dye Red No. 3 is harmful comes from studies in rats, not people. Food companies now have two years to remove it from products.

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

Celtic women’s social and political standing in Iron Age England has received a genetic lift.

Experts say clinical obesity is more than a high BMI and instead is a disease in which excess body fat harms tissues, organs or doing daily activities.

Toxins on poison dart frog skin mold the skin's microbial community, boosting species variety and potentially even feeding some daredevil bacteria.