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Where Food Is Limited,Guppy Mothers Gestate Their Young Longer（图）
Food Is Limited Guppy Mothers Gestate Young Longer
2017/10/25
Trinidadian guppy mamas can’t swap links to maternity blogs or copies of pregnancy books, yet evolution has made them master strategists of childbearing nonetheless. A new study shows that guppies who...
Polar Bears Experience Limited Energy Savings in Summer,New Study Finds
Polar Bears Energy Savings Summer
2015/8/4
Polar bears are unlikely to physiologically compensate for extended food deprivation associated with the ongoing loss of sea ice, according to one-of-its-kind research conducted by University of Wyomi...
Drivers performance in response to sight-limited and multi-threat crash scenarios at mid-block crosswalks: An evaluation of advance yield markings and sign prompts
Pedestrian crossing jam yields factors
2014/12/11
Mid-block crosswalks present a challenging detection task when drivers are not familiar with the area, crosswalks are at locations with high traffic volume, or the visibility of the approaching crossw...