North America
- Tech
First million-year-old DNA extracted from Siberian mammoth teeth
By Michael Marshall Mammoths once roamed Siberia Beth Zaiken/Centre for Palaeogenetics For the first time, preserved DNA has been recovered…
Read More » - Health
Texas freeze led to release of tons of air pollutants as refineries shut
By Laura Sanicola, Erwin Seba NEW YORK/HOUSTON (Reuters) – The largest U.S. oil refiners released tons of air pollutants into…
Read More »
