Five have washed up in a year, an unusually high number, and scientists are unsure what's going on
(Newser) -
Earlier this month, a 14-foot great white shark washed up on a shore in Nova Scotia, Canada, and it's a head-scratcher for ocean scientists on two fronts. First, the adult shark was seemingly healthy on all fronts, and they can't determine what caused its death, reports Live Science...