Hitchhiker's Guide to the New World
Courtesy of CDCUS researchers are looking to otherwise unwanted guests to piece together humans' evolutionary past: lice. They suggest that modern Homo sapiens may have had direct physical contact with Homo erectus in Asia before crossing over to the New World.Florida Museum of Natural History's David Reed and colleagues present evidence that the New World lineage of head and body lice coevolved with H. erectus, but switched hosts to H. sapiens around 25,000 years ago.1 The effective isolation o
Nov 7, 2004
Courtesy of CDC

US researchers are looking to otherwise unwanted guests to piece together humans' evolutionary past: lice. They suggest that modern
Florida Museum of Natural History's David Reed and colleagues present evidence that the New World lineage of head and body lice coevolved with
"I think that the conclusion that there was contact between remnant
Others are less convinced. Mark Stoneking, at the...
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