搜索结果: 1-3 共查到“理学 wolves”相关记录3条 . 查询时间(0.082 秒)
In Harm's Way:Wolves May Not Risk 'Prey Switching' say USU Ecologists
Wolves May Not Risk Prey Switching USU Ecologists
2017/4/27
Ecologists have long observed predators pursue disproportionately more of a plentiful prey species, and less of scarce prey, but change to the latter if it becomes relatively more abundant. Known as “...
Understanding the ecological role of wolves in Yellowstone National Park
ecological role wolves Yellowstone National Park
2015/9/8
Long loathed as a threat and nuisance, the wolf population in Yellowstone National Park was essentially wiped out by the mid 1920s. That changed in 1995, when the National Park Service reintroduced wo...
Genomes of modern dogs and wolves provide new insights on domestication（图）
modern dogs wolves
2014/3/17
Dogs and wolves evolved from a common ancestor between 9,000 and 34,000 years ago, before humans transitioned to agricultural societies, according to an analysis of modern dog and wolf genomes from ar...