An orca and her baby

You’ve probably seen this story on the internet — an orca whale gives birth but the baby dies a couple of hours later. The mom refuses to let the corpse sink and instead nudges the baby through the water for an unprecedented 17 days. The grieving mother struck a chord around the world. Host Carol Hills speaks with killer whale biologist Deborah Giles.

An orca and her baby - The World from PRX