Opinion

This is the oldest confirmed use of a mixture comprising two or more plant toxins specifically applied to arrowheads.

Human biology is vastly more energy efficient than today's computing.

Neurotechnology raises many high-stakes ethical questions. Setting ground rules could help protect workers and ensure that tasks are adapted to the person, rather than the other way around.

Antarctica is melting, and crucial details are beginning to come into focus of exactly how it's happening.

Archaeologists and Wurundjeri Woi-wurrung people are shedding new light on a series of enigmatic earth rings located in southeastern Australia.

Even once researchers can reliably get more power out of a fusion reaction than they put in, they'll still need to overcome engineering challenges to scale up fusion energy.

Evolution is often depicted as a steady forward march from simple to complex forms. But new research shows that certain ferns can evolve ‘backward.’

Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.

In "time expansion experiences," time typically appears to expand by many orders of magnitude.

Research shows that A.D. 536 was not the worst year to be alive.