Given the task definition and input, reply with output. In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

However , whereas most theropods walked with three toes contacting the ground , fossilized footprint tracks confirm that many early paravian groups , including the dromaeosaurids , held the second toe off the ground in a hyperextended position , with only the third and fourth toes bearing the weight of the animal .

Whereas other theropods walked with three toes on the ground , fossilized footprint tracks show that most dromaeosaurs held the second toe off the ground , with only the third and fourth toes bearing the weight of the animal .