When closely related species mate, their offspring sometimes survive but cannot reproduce. This pattern often affects males ...

Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would otherwise plague a self-cloning species.

From funky smells to crafty colors, orchids have some weird ways of attracting pollinators ...

To model bacterial life, Thornburg and his colleagues turned to one of its simplest examples: a bacterial cell with a ...

Researchers at Kenya’s Ol Pejeta Conservancy witnessed a biological breakthrough recently when a southern white rhinoceros successfully became pregnant through an artificial embryo transfer for the ...

The question many mark: Will AI replace us, or more accurately, will some human beings replace others with AI? The corollary: What, if anything, makes humans irreplaceable? As artificial intelligence ...

Humans appear to be the only species clearly proven to shed tears specifically because of emotions. Elephants, primates, and dogs show behaviors and biological responses that come closest to human ...

Crying is one of the most recognizable human emotional signals. Tears appear when people experience grief, relief, joy, or deep stress. Because this response is so familiar, observers often assume ...

Humans really do rule the world. We took over fast and far, more than any other wild vertebrates. We inhabit nearly every ...

How they use their time looks different for older and younger adults. And across age groups, it differs by gender. Using data from the American Time Use Survey – conducted by the U.S. Census Bureau – ...

They can make a trip to the D.M.V., jury duty or a bus commute the best part of your day. How do they do it? And why? By Jancee Dunn Every day when I drive my kid to school, I pass a smiling crossing ...