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.
Most people are diploid. That is, we have two sets of chromosomes — one set from each parent. But that's not always the case for other species, especially plants.
"Strawberries, for example, have eight sets of chromosomes," says Yves Van de Peer, a p... [4597 chars]