Climate change shaping evolution?
Researchers predict that as winters continue to warm, sheep bodies will get smaller
A team of researchers has linked changes in shape and size trends in Scottish sheep populations to the influence of climate change. Analyzing twenty years of data, the researchers were able to demonstrate the connection – harsh winter weather favors larger bodies, but as average winter weather warmed over recent years, there is less selection for the once favorable larger bodies. “People have argued for a long time that climate change is leaving an ecological legacy, but we have shown it will leave an evolutionary legacy too,” researcher Tim Coulson told the BBC.
Digging up digging dinos
The first definitive evidence of burrowing dinosaurs was discovered in
American Crocodile no longer endangered
On Tuesday, the once “endangered” American crocodile was downgraded to a “threatened” status by the U.S. Fish and Wildlife Service. The species is still protected by the Endangered Species Act, but the new classification implies a positive trend in its population recovery. Under its protected status and the preservation of