Deep-diving toothed whales wash up dead with stomachs full of plastic and prey alike. Their built-in sonar likely can’t tell the difference. Two adult sperm whales swim side by side in Dominica. The ...

Scientists in Madeira study the impacts of plastics on whales and dolphins. Far out in the eastern Atlantic, the Portuguese island of Madeira rises from the depths of the open ocean. Despite its ...

In the ocean’s abyss, deep-diving whales use echolocation to hunt in pitch dark. Emitting sounds that bounce off objects gives the whales a clear picture of their surroundings. “More often than any ...

Why is marine life eating plastic? Scientists say their sonar is being fooled. How do dolphins and other toothed whales mistake plastic for food? At the Duke Marine Lab in Beaufort, North Carolina, ...