Tom Metcalfe

It’s not as far as we thought, though

Contrary to popular belief, it had little to do with the dinosaur-killing asteroid

Tracing the roots of diversity in the coveted fruit in Central America

Mutualistic partnerships between species abound across nature—but it’s a tricky dance to make sure both parties keep pulling their weight

Increasingly scientists are testing chatbots rather than humans in experiments

The Asian house shrew stowed away on routes of human commerce for millennia