Mammals are social animals. Which of the following statements is correct?
a. Herbivores such as zebras and dolphins live in herds.
b. Adults in a herd surround and protect the young, who are most vulnerable to predators.
c. Adult males in a pride hunt cooperatively, which is more efficient than hunting alone.
d. all of the above
B. would seem to be the correct one. A. isn't true because dolphin groups are called pods. C. would not be true except for a small group of lions that live near the Nile. The females usually do the hunting.