Marine Biologists Finally Know What's Killing Orcas Across Washington — And It Isn't a Predator

Scientists have photographed every one of these killer whales for fifty years. They know each whale by name and number. Federal law protects them. Nothing in the ocean hunts them. And they keep disappearing. In October 2025, researchers went looking for a newborn calf swimming beside its mother off the coast of Washington. The mother surfaced. The calf never did. No body. No attack. Just an empty space in the water. It has happened again and again in these waters, while a second population of killer whales, living in the exact same channels and passing the same boats, keeps growing. In this episode we follow the investigation: the suspects researchers ruled out one by one, the young whale who starved in front of their cameras, the poison hidden inside every one of these animals, and why the newborns are the ones dying first. The answer is now well documented. It is also harder to fix than anyone wants to admit. A note on this year's count: it was the best in almost a decade. What it leaves out is the part nobody put in a headline. If you follow wildlife mysteries in North America, subscribe to Primal Lens. New investigations every week. ---------------------------------------- SOURCES ---------------------------------------- Center for Whale Research — Encounter reports and annual census (whaleresearch.com) https://www.squamishchief.com/highlights/newest-j-pod-orca-calf-missing-presumed-dead-11431652 https://vicnews.com/2025/11/03/hope-to-heartbreak-newest-endangered-b-c-orca-calf-missing-presumed-dead/ https://komonews.com/news/local/gallery/southern-resident-orca-calf-j64-most-likely-deceased-center-for-whale-researchers-killer-whales-whale-population-puget-sound https://www.kiro7.com/news/local/orca-calf-north-sound-pod-likely-dead-researchers-say/5CAULUSKMZDVXIPQBEKRX3L2VU/ https://www.cbc.ca/1.5205596 Additional reporting and data: NOAA Fisheries (Southern Resident Killer Whale recovery and Endangered Species Act listing), Puget Sound Partnership Vital Signs (Chinook salmon and orca population), Puget Sound Institute (2026 census), The Seattle Times (J50 "Scarlet", 2018–2019), KUOW (contaminants and blubber), CBS News and CBC (Tahlequah, J35), Whale and Dolphin Conservation (Penn Cove captures, 1970). All photographs and footage of Southern Resident killer whales by the Center for Whale Research were taken under federal permits NMFS 27038 / DFO SARA 388.