But the bees roll balls because playing was pleasurable on its own.

但是蜜蜂滚球是因为玩耍本身是快乐的。

African dung beetles are really good at rolling large balls in straight lines.

非洲屎壳郎真的很擅长在直线上滚动大球。

The bees repeatedly chose to roll the balls around, sometimes over 100 times.

蜜蜂们反复将球滚来滚去，有时超过100次。

Just roll your balls in wherever you want.

只需将球滚到任何你想要的地方。

So if these beetles were rolling dung balls around, where did that poop come from?

所以如果这些甲虫在周围滚动粪球，那么这些便便是 从哪里来的？

This time the beetles—minus their hats—were timed to see how long it took them to roll their balls from the centre to the point where they could be heard falling into the moat.

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。