Lions, New Tigers, and Bears, oh my: The 344th Evolutionary Lens with Bret Weinstein and Heather Heying

Bret Weinstein and Heather Heying do biology: the tilcayo, a newly described wild cat from the Bolivian Andes, and why so many small tiger cats ring the Amazon; Fat Bear Week at Katmai and why grizzlies grow gigantic; and new research showing that female tree frogs choose mates less accurately when it's loud and crowded.