Daily Roundup: July 29, 2011
On the Run: Two sea lions whose necks are ensnared in wire have thwarted four rescue attempts by wildlife officials. The pinnipeds dodged boats and "led rescuers in low-speed chases around San Francisco Bay." San Francisco Chronicle
Through the Grapevine: Scientists discovered that a vine in Cuba uses dish-shaped leaves to create a distinctive echo, which attracts nectar-feeding bats. New York Times
Pushing the Limit: Some 10 billion people may inhabit the planet by 2100, but demographers believe that population growth will plateau around the end of the century. Discovery News
Northern Lights: New research warns of the increased risk of massive fires in the Arctic tundra, which could worsen climate change. New Scientist
Off the Hook: Don't blame Ben Franklin for the troublesome tallow tree: Genetic tests of the invasive species (it's from China) in the Gulf Coast region show that the fast-growing plants aren't related to the batch Franklin imported in the 1700s. ScienceDaily
--Della Watson

