Their studies of shark jaws show that lions or tigers win hands down when it comes to jaw strength - but sharks prevail in the water because of their wide jaw size.

• 他们对鲨鱼下颚的研究显示，以下颚力道来比，狮子、老虎都轻松击败鲨鱼，但是鲨鱼在水里称霸，是因为牠们有宽大的下颚。