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Feng Lin could first be certain that these monsters, upon laying eyes on humans, prioritized killing humans.
When there were no people around, they would slaughter each other.
Feng Lin felt fortunate that he was hiding in a deserted area, which allowed him to discover their secret.
On the heads of these monsters, there was a small pattern.
It closely resembled Qin Lili's pair of strange eyes.
Some patterns were square with a dot in the center.
Some were diamond-shaped with a dot in the center.
Some had just a single dot.
So far, Feng Lin had only discovered these three types, and monsters with the same pattern did not kill each other.
Since these creatures were enormous, the pattern was only the size of a ping-pong ball.
Ordinary people wouldn't even notice it.
Moreover, there were no outsiders here with Feng Lin, and the monsters were slaughtering each other, allowing him to quickly make out the distinction.