附近有一条干涸的壕沟这次蜣螂没有戴帽子实验人员要看看他们从场地中央滚粪球到跌入壕沟能用时多久。
Under a full moon the beetles took an average of 21.4 seconds to reach the moat.
满月之夜蜣螂抵达壕沟平均耗时21.4秒。
On a moonless, starry night, their speed was somewhat reduced, but not significantly so.
在繁星满天的无月之夜,它们的速度有所下降,但降得不多。
However, under overcast conditions, when neither moonlight nor the stars were visible, thebeetles took an average of 117.4 seconds.
如果晚上阴天,看不到星星和月亮,蜣螂抵达目的地要平均耗时117.4秒。
Curious as to what it was in the sky that the beetles were using to navigate, the teammoved their arena inside the Johannesburg planetarium and reran their experiments.
因为试验人员急于了解蜣螂到底利用天上的什么物体导航,他们到约翰内斯堡天文馆做室内实验。
As they report in Current Biology, the beetles presented with a full starlit sky, including theMilky Way or just the Milky Way, took statistically the same amount of time to exit thearena.
他们在《当代生物学》杂志上统计了蜣螂在繁星满天的夜空下走出场地用的时间在统计学上是相同的,
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