With long limbs and a prehensile tail that can grip like a hand, they're built for climbing.

修长的四肢加上灵活如手的卷尾，他们就是为攀爬而生的。

Prehensile tails take a lot of extra energy to operate, so it’s possible that they just aren’t useful enough to those monkeys to be worth having.

维持卷缠尾需要很多能量，所以可能不够实用而不值得拥有。

They looked kind of like chameleons, with grasping hands and feet, and long prehensile tails.

它们看起来有点像变色龙，有抓握的手和脚，还有长长的可以抓握的尾巴。

Some kinds, like Megalancosaurus, even had prehensile tails, with a claw-like hook on the end that helped them hold on to branches.

有些种类，例如巨龙，甚至有可以抓握的尾巴，末端有一个爪状的钩子， 可以帮助它们抓住树枝。

On the other hand, the transportal of the lower eye of a flat-fish to the upper side of the head, and the formation of a prehensile tail, may be attributed almost wholly to continued use, together with inheritance.

另一方面，比目鱼的下眼向头部的上侧移动， 以及可卷曲的尾巴的形成，几乎可以完全归因于持续使用和遗传。