Big Climate Change Did Not Kill Neanderthals - Study
Using a new method to calibrate carbon-14 dating, the international team found the last Neanderthals died at least 3,000 years before a major change in temperatures occurred.
This suggests either modern humans or a combination of humans and less severe climate change caused the species' demise some 30,000 years ago, said Chronis Tzedakis, a paleoecologist at the University of Leeds, who led the study published in the journal Nature.
World Conservation Union: 16,300 species threatened
That is nearly 200 more species of wildlife than last year, Hilton-Tailor said in a telephone interview. Even so, there are probably many more than that, he said.
"The estimate is low; we know it's low," Hilton-Tailor said. "We've only really looked at the tip of the iceberg in terms of species that are out there that are known to science."
Gorillas now 'critically endangered'
The most common type of gorilla is now "critically endangered," one step away from global extinction, according to the 2007 Red List of Threatened Species released Wednesday by the World Conservation Union.
(With thanks to Nick Redfern.)
No comments:
Post a Comment