虽然生物学家能轻易让四足动物在侧腹长出额外的肢,在颈部却做不到。
Although biologists can easily induce extra limbs to grow on the flank of a tetrapod, this cannot be done in the neck.虽然生物学家能轻易让四足动物在侧腹长出额外的肢,在颈部却做不到。
And the fusing of bones making up the lower jaw fortified this region, facilitating the presumed" buccal pump" mode of tetrapod ventilation.下颔部位骨头的愈合也加强支撑力,帮助可能以口部当做帮浦的形式换气。