Monthly Archives: March 2015

03.06.15

Fossil jaw sheds light on the early evolution of Homo

In the News
A close up view of the fossil  just steps from where it was discovered by Chalachew Seyoum. Photo by Brian Villmoare. A fossil lower jaw found in the Afar Region of Ethiopia pushes back evidence for the human genus Homo to 2.8 million years ago. The jaw with five teeth was found by Chalachew Seyoum, a Baldwin Fellow and Arizona State University paleoanthropology graduate student from Ethiopia.… more »
03.06.15

Guest Post: Why walk on two legs?

Speaker Series, Guest Post
By Jeremy DeSilva of Boston University. Jeremy will discuss the question “Why walk on two legs?” at a SciCafe at the American Museum of Natural History on April 1, 2015. This article is an excellent introduction to the pros and cons of bipedalism.
Humans are weird. We are mammals, yet we have very little body hair. We are primates, yet unlike most primates, we are generally uncomfortable in… more »
03.03.15

Dominance, energetics and stress in female capuchins in Costa Rica

Research Report
Mackenzie Bergstrom For her PhD dissertation, Mackenzie Bergstrom of the University of Calgary studied 25 adult female capuchins living in three habituated social groups in a tropical dry forest in Sector Santa Rosa (SSR) of the Área de Conservaciόn Guanacaste (ACG) in northwest Costa Rica. To better understand how ecological and social variables affect the physical condition of these New World… more »