This week on Lost in Science Chris dives into the debate over seed oils—are they really toxic villains in your pantry, or just misunderstood kitchen staples? He unpacks the science behind the controversy that's spreading across social media faster than a hot fry in canola oil.

Meanwhile, Claire swings back to a fascinating story about great apes and their surprising medical know-how. New research reveals chimpanzees treating each other’s wounds with medicinal plants—offering fresh insight into the roots of healthcare and the evolution of compassion in our species.