C1589 I've Been Targeted by My Nemesis for 5

Yan Siting squatted down in front of the low level Zombie's corpse, carefully checked its wound and said, "This Zombie was not killed by a human, but by its own kind."

Hearing this, the other four people were shocked.

"Professor Yan, do you mean that Zombie will also kill each other?"

"If I'm not wrong, Zombie can advance by consuming their comrade's crystal nucleus." Yan Siting stood up