Alaska's permafrost is thawing, releasing a concerning amount of mercury - High Country News
Melting permafrost in Alaska is releasing alarming levels of mercury, posing serious threats to Indigenous peoples and the environment.
A frozen wolf discovered in Siberia turned out to be 44,000 years old. It's so well-preserved that scientists are checking its gut for ancient viruses.
Researchers are studying a 44,000-year-old mummified wolf found in the permafrost in Russia for insights into its lifestyle, diet, genetics, and relationships with modern animals.