14-06-22 伦敦一名数学家在YouTube视频中展示了最佳的切蛋糕方式。您别说，还真有那么点道理。 Forget everything you know about cake cutting; this new method could turn the seemingly straight-forward practice on its head. Although, using the word 'new' isn't accur...

10-12-10 When their razor-sharp mandibles（下颌骨，上颚） wear out, leaf-cutter ants change jobs, remaining productive while letting their more efficient sisters take over cutting, say researchers from two Oregon universities. Their study -- appearing online...