![Howwouldyouliketosleepwithonehalfyourbrainasleepandt...]( "Howwouldyouliketosleepwithonehalfyourbrainasleepandt...")
- 問題詳情： Howwouldyouliketosleepwithonehalfyourbrainasleepandtheotherhalfawake?Dolphinssleepthisway.Recently,scientistsatIndianaStateUniversityhavediscoveredthatduckssleepthiswaytoo.Theyfoundthatduckssleephalfawakesotheycanrestandwatchfordangerat...
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