科学美国人60秒 SSS Science News Briefs from All Over(在线收听

 

Here are a few brief reports about international science and technology from around the world, including one from the Democratic Republic of the Congo about a toad that has evolved coloring that makes it look like a deadly snake’s head.

  原文地址:http://www.tingroom.com/lesson/sasss/2020/2/498553.html