Arctic Nesting 73 Million Years Ago? Fossils Reveal Ancient Bird Behavior
Today’s Arctic is a land of bitterly cold winters, unceasing summer daylight, and a delicate ecology full of migrating birds. But a revolutionary finding in northern Alaska points to an avian paradise far older than we could have ever known. A wealth of 73-million-year-old fossils, including delicate bones of embryos and hatchlings, shows that birds ...
