Terrifying ultra-ripped chimps bearing razor-sharp fangs prove why we should pray Planet of the Apes never happens.
The chimpanzees – which suffer from the hair-loss condition alopecia – brutally beat each other up, prompting some to believe they could take over the world.
Footage shows the primates running rampant inside an enclosure as they gang up and begin ruthlessly beating each other.
One animal in particular caught viewers attention because of his lack of hair and muscular build and superfast movements.
The hairless beast circles around peers before thumping them and scaring others off.
One YouTube user wrote: “You really get to see how jacked they are without their hair!”
Another viewer added: “Look at how it just jumps and pulls itself onto things with such ease like it’s flying.”
Meanwhile a third user added: “Is this the rise of the planet of the apes?”
Biologists say the aggressive creatures are at least four times stronger than their human “cousins”.
Chimps are considered the closest living relative of humans, sharing between 95 to 98 percent of the same DNA.
However, when it comes to muscular strength there really is no comparison between the two, say wildlife experts.
And if it ever came to a one-on-one fight there would be only one winner, said Steve Ross of Chicago’s Lincoln Park Zoo.
When they fight “it’s the closest thing we know to human warfare,” said Ross, director of the Study of Conservation of Apes.
“Chimps are incredibly strong and fast so humans are easily overpowered.”
Scientific research suggests the difference in strength between the two is down to how well the muscles perform.
In chimps, the muscle fibres closest to the bones – deemed to be the source of strength – are much longer and more dense.
This means a chimp is able to generate more power using despite using the exact same range of motion, experts say.
However, unlike humans they have a lot less control over how they use their muscles – so use more strength than necessary.
In 2016, footage filmed at Twycross Zoo, in Atherstone, showed the moment two “naked apes” took on 12 others.
The ripped chimps were filmed chasing and fighting with the others while screeching and grinding their teeth.
Scientists believe alopecia can be induced in chimpanzees due to stress or trauma, which can also happen to humans.