'Whale Cams' Capture Massive Mammals' Mysterious Daily Habits

Whales' social lives have largely remained a mystery to scientists, until now. Researchers have gained a whale's-eye view of the marine mammals' lives in Antarctica, thanks to a research project that placed noninvasive digital tags — containing sensors and a camera — on minke and humpback whales. The data and footage collected reveal the animals' feeding habits and social behaviors, and show how whales use their blowholes to clear sea ice so they can breathe.