Under water, a transparent nictitating membrane lubricated by special glands, protects the eye. The crocodile can also partially retract its eyes to protect them from damage.

 
  • 在水下;会有一种由特别的分泌腺润滑的透明薄膜保护眼睛.;鳄鱼亦能部分地缩小眼球以避免伤害
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