Pic o’ the Week: Sleeping Sperm Whales

Photo by Franco Banfi/Solent News & Photo Agency When it's time for a nap, sperm whales go vertical with their pod and snooze away. "Sleeping dogs lie, but sleeping whales … 'stand' on their tails? That was the scene ... glimpsed by a diver in the Caribbean, at least, when the photographer encountered a group …