03/12/2022 12:18 PM | Click to read full article
No creature could have prepared for the disaster. The end-Cretaceous mass extinction wiped out roughly 75% of known fossil species virtually overnight. But frogs fared better than average. “The high resilience of frogs to the last mass extinction has been a mystery,” says Chinese Academy of Sciences biologist Anderson Feijó. The frogs that survived the worst day on Earth may have not been too big, nor too small, but just the right size.