Wild Things: Yawning Chimps, Humpback Whales and More...
Leaping beetles, Pacific salmon, prehistoric mammals and other news updates in wildlife research
- By Arcynta Ali Childs, T.A. Frail, Megan Gambino, Laura Helmuth and Sarah Zielinski
- Smithsonian magazine, June 2011
Humpback Whale (Flip Nicklin / Minden Pictures (Obtained under permit #987))
Male humpback whales in the South Pacific all sing the same song—until another one catches on and they start singing a new tune. An 11-year study showed that songs usually originate off Australia and spread east. How? A few whales may move east and take the songs with them, or they may swap songs along shared migration routes.
"Ingroup-Outgroup Bias in Contagious Yawning by Chimpanzees Supports Link to Empathy," Matthew W. Campbell and Frans B. M. de Waal, PLoS ONE, April 2011
"Dental Occlusion in a 260-Million-Year-Old Therapsid with Saber Canines from the Permian of Brazil," Juan Carlos Cisneros et al., Science, March 25, 2011
"Wind-Powered Wheel Locomotion, Initiated by Leaping Somersaults, in Larvae of the Southeastern Beach Tiger Beetle (Cicindela dorsalis media)," Alan Harvey and Sarah Zukoff, PLoS ONE, March 23, 2011
"Impacts of Salmon on Riparian Plant Diversity," Morgan D. Hocking and John D. Reynolds, Science, March 25, 2011
"Dynamic Horizontal Cultural Transmission of Humpback Whale Song at the Ocean Basin Scale," Ellen C. Garland et al., Current Biology, April 14, 2011