Simplify the following text for a Grade 11 native English-speaking person.
Original: Some animals , such as the kangaroo , employ jumping ( commonly called hopping in this instance ) as their primary form of locomotion , while others , such as frogs , use it only as a means to escape predators .
Simplified: Some animals , such as the kangaroo , employ jumping as their primary form of locomotion , while others , such as frogs , use it only as a means to escape predators .