long legs for running sharp claws for climbing webbed feet for swimming prehensile tail for hanging from trees
I gave my students this multiple choice question: Herbivores that evolved on grassy plains are likely to naturally select for traits different than herbivores that evolved in rain forests. Which trait is a plains herbivore most likely to develop over thousands of years?

Only one answer is correct among these 4 choices:
- long legs for running
- sharp claws for climbing
- webbed feet for swimming
- prehensile tail for hanging from trees

Could you tell me which one is correct?

long legs for running