Our cursorial dinosaur is Ornithomimus, so B is the correct answer.

们游标恐龙是似鸟龙，所以 B 是正确答案。

Some had cursorial limbs and others landed in the gray area in between.

有些有粗略肢，有些则落在两者之间灰色区域。

Which of these animals do you think had cursorial limbs?

您认为以下哪些动具有粗肢？

This is in contrast to cursorial animals which tend to be smaller like a cat or a deer.

这与像猫或鹿这样体型较小游走动形成对比。

On the other hand, cursorial limbs allow an animal to run faster, but be less efficient at carrying a large mass.

另一方面，粗壮肢允许动跑得更快，但在承载大质量时效率较低。

This is a strong factor in what drives different groups of animals to either evolve more graviportal limbs or more cursorial limbs.

这是促使不同动群体进化出更多重力门肢或更多游动肢体重要因素。