Planet of the Apes is not a fiction. Monkeys are smarter than they let on. They have the knowledge to escape from the zoos. Here this monkey has that knowledge and soon others will follow too.
A monkey has used a stone to break the glass wall of its enclosure at Zhengzhou Zoo in Central China. The zoo visitors were surprised too this and also the Columbian white-faced Capuchin scarpered once it realized what it had done.

Mr. Wang told the Daily Mail that, “the monkey was sharpening the stone, then it started hitting it on the glass. The monkey scared itself away, but it came back to take another look and even touched it.” This can be simply an accident or this can be a nefarious plan of this Capuchin. It may pretend to be scared at first, so that we wouldn’t suspect it.

Tian Shuliao, one of the zoo’s staff told that, “this monkey is unlike other monkeys. This one knows how to use tools to break walnuts. When we feed walnuts to other monkeys, they only know to bite it. But it had never hit the glass before though. This is the first time. It’s toughened glass, so it would never have got out. After it happened, we picked up all the rocks and took away all its ‘weapons’.”

Only few of animals know the way to use tools, and they are not only monkeys. Live Science proved that, chimpanzees use stone tools and even make spears for hunting other primates. Crows also has a wide range of tools, such as from twigs to their own feathers.

Even sea animals use tools such as sea otters use rocks to hit abalone shells off of stones and crack them open. Octopuses use coconut shells as portable armor which is more defensive application of tools.
Here is the video of how Capuchin breaking the glass.
There could be a need of rewatching all the Planet of the Apes films as here is a monkey uprising in the near future. Let us know in the comments below on what you think of animals that can use tools proficiently.
People had this to say about the crafty Capuchin monkey



source used : https://www.boredpanda.com/monkey-breaking-glass-zhengzhou-zoo-china/