Monitoring Melting
A pod of elephant seals has helped researchers build the most complete picture to date of how, and how fast, ice shelves fringing East Antarctica are melting.
Plant-Friendly Fungus
A soil fungus, Metarhizium, which is a widespread insect pathogen and killer, has been found to purvey insect-derived nitrogen to plant hosts.
A Real-Life Armageddon?
12,900 years ago, cosmic bombardment by fragments of an asteroid or comet may have caused Earth to enter an unusually cold 1,300-year spell, the Younger Dryas.
Cougars Make New Tracks
Wildlife biologist confirm that cougars have returned to the Midwest after being wiped out a century ago.