In “Amazon Tipping Point” — Third-Place Winner of the 2025 Yale Environment 360 Film Contest — Brazilian filmmakers capture striking images of clear-cutting and explore how human activity is so damaging the world’s largest rainforest that it will not be able to recover.
Biologists once thought that humans did little to affect the course of evolution in the short term. But a recent study of cod in the Baltic Sea reveals how overfishing and selective harvest of the largest fish has caused genetic changes that favor slower growth and smaller size.