Orcas have been ramming yachts and fishing boats off the coast of southwest Europe for months — in some cases terrifying their crews and captains. Guest host Susan Ormiston explores the mystery behind this so-called “orca uprising,” and learns why we should avoid projecting human psychology onto these complex creatures. Then, rising sea levels pose an existential threat to islands around the world, forcing millions to confront their future as their homes lose ground to climate change. We talk to two islanders about why preserving island culture, from the Seychelles to Puerto Rico, is so important. And we hear episode five of the CBC podcast Let’s Not Be Kidding. It’s the story of how comedian Gavin Crawford lost his mother Donna to Alzheimer’s and learned that coping with the disease sometimes meant finding the funny moments.

Orcas have been ramming yachts and fishing boats off the coast of southwest Europe for months — in some cases terrifying their crews and captains. Guest host Susan Ormiston explores the mystery behind this so-called “orca uprising,” and learns why we should avoid projecting human psychology onto these complex creatures.