At first, the footage could pass for a swath of sky that has suddenly become host to a flock of birds. Doves, perhaps. But ...

How big is the anglerfish? Why did it come to the surface? A scientist weighs in about what happened to the anglerfish.

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...