拥有此种技能的恐龙个体不但可以获得更多的食物资源，而且还能更有效的躲避掠食者——这种特征从而得以代代相传。
Individuals able to perform such a feat might have been able to reach new food sources or better escape predators-and pass the trait on to subsequent generations.
这种被称为恐爪龙(Deinonychus)的恐龙后足上存在镰刀般的利爪，从头到尾的身长约为3.3米，是一种非常敏捷的掠食者。
Deinonychus, or "terrible claw" after the sickle-shaped talon on each hind foot, stood about 11 feet from head to tail and was a lithe predator.
根据其他化石证据显示，绮纹阔头蜥必须在恐龙、翼龙、巨大而状似鳄鱼的植龙，以及早期哺乳类等掠食者的夹缝间求生存。
Other fossils show that it lived alongside predators like dinosaurs, pterosaurs, massive crocodile-like reptiles called phytosaurs, and early mammals.
根据其他化石证据显示，绮纹阔头蜥必须在恐龙、翼龙、巨大而状似鳄鱼的植龙，以及早期哺乳类等掠食者的夹缝间求生存。
Other fossils show that it lived alongside predators like dinosaurs, pterosaurs, massive crocodile-like reptiles called phytosaurs, and early mammals.
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