Stories by Ari Daniel

That's the provocative question that researchers dug into after the U.S. shut down its premier aid agency.

Get ready for a biology lesson. Certain plants have extra sets of chromosomes. And it turns out, it's a useful trait for a species facing a dramatic event like climate change.

Scientists dug up a Paleolithic tooth that shows signs that these hominins may have been capable of executing a precise dental procedure.

More than two dozen passengers left the cruise ship before the outbreak was identified. The race is on to connect with them to monitor their health — and the health of those they've interacted with.

TB tests use phlegm — not the easiest thing to get or work with. It takes time for results. And there can be false negatives and positives. A new test is more accurate and takes less than half an hour.