What Happened to South America’s Missing Mega

作者：admin 2020-10-09

The glyptodon, an ancient relative of the armadillo, is one of the few South American species to cross the Panama land bridge into North America.Credit...Millard H. Sharp/Science SourceBy Asher ElbeinOct. 8, 2020, 5:00 a.m. ETMillions of years before 阅读全文

Extinction Is Not Inevitable. These Species Were Saved.

作者：admin 2020-09-13

Przewalski’s stallions play-fighting in Hustai National Park in Mongolia. A captive breeding program saved the species from extinction, and they number more than 760 today.Credit...Kristel Richard/Nature Picture Library/AlamyBy Rachel NuwerSept. 12, 阅读全文