The Siberian ice holds unsuspected secrets. In 2020, an exceptional discovery was made near the Badyarikha River: that of a baby saber-toothed tiger, frozen in time for nearly 36,000 years.

An array of sabertooth teeth from Dinofelis, Lokotunjailurus, and Adeilosmilus CREDIT iScience Jiangzuo et al. A sabertooth tiger family tree CREDIT iScience Jiangzuo et al.

No U. S. citizens are fonder of praising democracy than the heads of that most authoritarian institution—the U. S. school. Last week 10,000 superintendents, principals and professors heard ...