Image courtesy of chrisstockphotography/Alamy
Joel Kontinen
Thousands of fossils from the La Brea tar pits in California show no
signs of mammals and birds evolving in response to shifting temperatures over
the past 50,000 years
Is evolution happening today? Well, it has not occurring
in the mammals and birds in the past 50 000 years. It probably has not occurred at all.
Studies of tens of thousands of fossils from the La
Brea tar pits in California have found no clear evidence of any of the
species to falling temperatures as ice sheets spread across the
continent, or to the later
warming
when the glacial period ended.
“They’re not
fluctuating with climate change like so many biologists believe that everything
must do,” says Donald Prothero at California State Polytechnic
University in Pomona. “They’re static, despite obvious evidence
obvious evidence of climate
change at 20,000 years ago.”
This study couples
evolution with climate change.
Source:
Michael Le Page 2025 Fossils show puzzling lack of evolution during last ice age peak | New Scientist 28 May
Posts
