考虑到夜晚也可以生存，并且可供选择的白天的“交易”完全被占用，它们自然选择偏爱那些成功在夜间进行捕食“交易”的蝙蝠。
Given that there is a living to be made at night, and given that alternative daytime trades are thoroughly occupied, natural selection has favoured bats that make a go of the night-hunting trade.
研究统计了他们在十个夜晚内进入睡眠需要的时间和夜间醒来的次数。
The amount of time they took to get to sleep and the number of times they woke in the night was measured for ten nights.
Idzikowski说，研究表明大多数的人夜间保持一种睡眠姿势，只有5%的人，不同的夜晚不同的睡姿。
Idzikowski said the research reveals most people stay in the same position all night and only 5% lay differently night by night.
应用推荐