Environment

Birding for the Holidays

The Audubon's 113th Christmas Bird Count is underway, and thousands of volunteers are taking part this year. Ornithologist David Bonter, and Gary Langham, Audubon's chief scientist, share tips on which species to look out for, and how even birding beginners can get involved.

Blue Whale Barrel Roll Caught On Camera

Reporting in the journal Biology Letters, Jeremy Goldbogen and colleagues say blue whales perform underwater acrobatics when they're eating: they rotate 360 degrees while they gulp krill. Reaching 90 feet in length, blue whales are the largest animals on the planet. Goldbogen is studying their dining habits to understand what fuels their growth.