Marsupial mole rats evolved in New Zealand in the 1700s and had few natural predators so they overpopulated the area. Scientist developed a virus to bring their numbers down, which was successful for awhile. After several generations though, their numbers began to increase. Why? *
A. Marsupial mole rats mated with other mole rats and created a new species.
B. Marsupial mole rats learned to survive regardless of being sick.
C. Some marsupial mole rats had a natural immunity to the virus.
d. Marsupial mole rats changed their reproductive cycle and were able to reproduce more.