The fossil record shows that the climate of North America warmed and dried at the end of the Pleistocene period. Most of the species of large mammals then living on the continent became extinct, but the smaller mammalian species survived.
Which of the following, if true, provides the best basis for an explanation of the contrast described above between species of large mammals and species of small mammals?

Question

Examsnet · Accepted Answer

Correct Answer is :  Larger mammals have greater food and space requirements than smaller mammals and are thus less able to withstand environmental change.

GMAT Verbal Reasoning Practice Test 5