By physically engineering their environments, megafauna such as dinosaurs curbed fruit seed sizes—a role that now may be filled by humans ...

A coalition of autism scientists has formed to counter RFK, Jr.’s misrepresentations of science and of autism spectrum ...

This colorful jellyfish is not one organism but a colony of four kinds of polyp. The stinging cells on the tentacles with which it fishes secrete a substance that is almost as toxic as cobra venom ...

Tornadoes are predicted across swaths of the U.S. in the coming days, likely adding to this year’s already high tally of such ...

A CRISPR treatment seems to have been effective for a baby’s devastating disease, but it is not clear whether such bespoke ...

As U.S. childhood vaccination rates sway on a “knife’s edge,” new 25-year projections reveal how slight changes in national ...

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Medical research shows that social isolation is a serious chronic stressor. You can say something similar about its impact on ...

The quirks of light moving through gas are the cause of stellar twinkling, which can be a bane—and sometimes a boon—for astronomers ...

Kim Samuel is a research fellow at the Oxford Poverty and Human Development Initiative at Oxford University and the author of ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www.springernature.com/us). Scientific ...

Fossilized claw tracks discovered in Australia show that the animal group that includes reptiles, mammals and birds formed earlier than expected Subscribe to Scientific American to learn and share the ...