The Yangtze river sturgeon is following the Yangtze river dolphin [ into extinction ]( http://www.theguardian.com/world/2014/sep/15/wild-chinese-sturgeon-on-brink-of-extinction-in-polluted-yangtze ) .
Ссылка: https://stallman.org/archives/2014-jul-oct.html#16_September_2014_%28Yangtze_river_sturgeon_going_extinct%29