Uncategorized
- Life
Hummingbirds take stab at rivals with dagger-tipped bills
Sharp points on the bills of male long-billed hermit hummingbirds may have evolved as weaponry.
- Earth
More multi-tornado days in the forecast for U.S.
The number of days per year with tornadoes has gone down over the last few decades in the U.S., but the number of days that see 30 or more twisters is going up.
- Psychology
Mastering the art of self-control
Walter Mischel, the psychologist behind the marshmallow test, discusses his new book on self-control and willpower.
- Astronomy
Rendezvous with a comet
On November 12, Rosetta mission scientists successfully completed the first-ever attempt to put a lander on a comet.
