Migrating Birds Remember Better Migratory birds not only get to see the world. A new study finds that these globetrotters also have better long-term memories than stay-at-home relatives. The extra bra

发表于:2018-12-30 / 阅读(236) / 评论(0) 分类 英语沙龙2004全年合辑下

Scientists: Avian Flu in Migratory Birds Raises Fears of Virus Spread 科学担心禽流感在侯鸟中传播 The sick and dying waterfowl can be easily spotted at the Lake Qinghai nature reserve. If

发表于:2019-01-31 / 阅读(58) / 评论(0) 分类 VOA2005(下)--环境科学探索