This means war

 作者:郝阽矛     |      日期:2019-03-07 07:13:13
By Debora MacKenzie in Brussels COUNTRIES around the world have declared war on non-native species. At a meeting of the United Nations Biodiversity Convention in Montreal this week, 180 nations agreed to a raft of guidelines to stop alien species wreaking havoc on native wildlife. Alien invaders are the second biggest threat to wild species after habitat loss, the UN Environment Programme told the meeting. Invaders such as ruddy ducks, rats and mesquite bushes have eaten or out-competed native species, introduced diseases,