As Chen Zhou exerted force with his arms, the suffocating sensation of the male cave hyena intensified gradually.
It struggled, trying to shake off the human on its back to break free, but this human was far heavier than the primitive people it usually encountered—
Chen Zhou's bone density was nearly three times that of an average human, and his muscle fiber density was just as high.
Based on his physique alone, no one would have guessed he could weigh as much as 175 kg.
The lean-bodied male cave hyena usually relied on its weight to obtain an overwhelming advantage when attacking prehistoric humans.
But in facing Chen Zhou, it displayed the same helplessness as a prey.
The developed neck muscles were no match for his steel-like arms, with its tightly squeezed neck deeply sunken, smoothing the fur on the male cave hyena's head.
Its ears flattened backward, eyes bulging out as if they were about to pop out from their sockets.
