New research into baleen whales shows how they hit such low notes as well as the limits to how deep in the water they can go to talk to each other. It suggests most of their communication happens closer to the surface, right in the zones of ship noise.
The A42 pod of Northern Resident Killer Whales returned to Trail Bay on the Sunshine Coast, B.C. this week, much to the delight of local photographers.
It's been 43 years since the death of Skana, the world-famous orca experts believe changed the way people viewed killer whales and spurred a global movement in whale conservation.