Daily Roundup: March 10, 2011

Lend a Trunk: Scientists say elephants are "on par with chimps" in tests of cooperation. Science News

Mixing It Up: Ocean currents may play a more prominent role in carbon sequestration than biological mechanisms, a new study suggests. Science Daily

Sh*t Happens: Tiger excrement could be an effective pest deterrent. An Australian researcher successfully used the big cat's feces to steer feral deer, goats, and kangaroos away from crops. Treehugger

Start Your Engines: Energy Secretary Steven Chu announced that scientists have developed a cost-effective process for converting woody plants into fuel. CleanTechnica and Inhabitat

Bitter Taste: Greek authorities rejected a couple's adoption application because of their vegetarian diet. Ecorazzi

--Della Watson