几乎所有来自躯干及四肢的感官信息都经由脊髓传递。
Almost all sensory information from the trunk and limbs passes through the spinal cord.
海龟颈部和四肢的肌肉及骨骼的特殊设计使它能把暴露在外的部分缩回去，这样攻击者只能去咬坚硬的外壳。
The particular design of muscles and bones in the neck and limbs of the turtle allow that it can draw in its exposed parts such that an attacker can find nothing but hard shell to bite.
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