About Johns Hopkins

Recent news from The Johns Hopkins University

This section contains regularly updated highlights of the news from around The Johns Hopkins University. Links to the complete news reports from the nine schools, the Applied Physics Laboratory and other centers and institutes are to the left, as are links to help news media contact the Johns Hopkins communications offices.

 

Some Like It Hot: Site of Human Evolution Was Scorching

If you think summer in your hometown is hot, consider it fortunate that you don’t live in the Turkana Basin of Kenya, where the average daily temperature has reached the mid-90s or higher, year-round, for the past 4 million years. The need to stay cool in that cradle of human evolution may relate, at least in part, to why pre-humans learned to walk upright, lost the fur that covered the bodies of their predecessors and became able to sweat more, Johns Hopkins University earth scientist Benjamin Passey said.

Early Human Habitat Was Savanna, Not Forest

Pre-humans living in East Africa 4.4 million years ago inhabited savannas — grassy plains dotted with trees and shrubs — according to a team of researchers that includes earth scientist Naomi Levin of The Johns Hopkins University’s Krieger School of Arts and Sciences. Levin’s team published a commentary on this topic in the May 27 issue of the journal Science.