Alaska's Salmon Are Shrinking

Many of the events in the Winter Olympics involve some sort of sliding or slipping on ice—in a skillful, controlled way. Those moves often seem effortless, but the physics behind what makes them possible is messy. For centuries, scientists have been trying to figure out why ice i ...  Show more

In this episode of Science Quickly, multimedia journalist Meghan McDonough explores how emerging artificial-intelligence‑powered “smart home” tools are helping people with Alzheimer’s disease and other conditions that cause dementia stay safer at home while easing the load on car ...  Show more

Dan Saladino investigates the possible extinction of wild Atlantic salmon within 20 years. Dan travels from the River Spey on Scotland's east coast to fish farms in the west in order to plot the decline of one species, the wild salmon, and the rise of another, farmed salmon.From ...  Show more

Salmon are one of the world’s most popular fish. And - in terms of the size of the industry - they’re also the world’s most valuable. They provide crucial proteins and fatty acids to many people’s diets. But like other species of fish, their production is undergoing a historic ...

This year, there's no fresh, locally caught salmon. The season was closed. So few adult fish are now in the ocean off the California coast, fisheries managers decided they all were needed to return to their natal streams and spawn. Guest: Danielle Venton, KQED Science Reporter M ...  Show more

Sockeye and Chinook salmon make one of the world's great animal migrations, swimming 900 miles from the Pacific Ocean up 6,500 feet into Idaho’s Sawtooth Mountains, where they spawn and die - but that journey may not happen much longer. In addition to the gauntlet of predators th ...  Show more