Why does this "clown monkey" look torn?

Is this muscular monkey just a posing primate? Santeri Oksanen, a monkey in the Finnish Zoo, has recently attracted widespread attention on social media because she has an unusual "buff" figure, but she is not as strong as she looks.

In the photo, a female white-faced monkey (Pithecia Pithecia)Bea curled up on the branch of the fence of Helsinki Zoo. The representative of the zoo told Life Science that compared with her radiant face, her arms, chest and legs are very bloated, which makes her look muscular, just like a bodybuilder injected with steroids.

But in fact, the monkey's muscles are not so good. The big sign comes from Bea fluffy's plump fur. [Eight kinds of human behaviors of primates]

The white-faced Saki people are native to Brazil, Venezuela and parts of Indonesia. According to the University of Michigan Animal Museum, they spend most of their time in the canopy of the rainforest at an altitude of 82 feet (25 meters).

Merja Wahlroos, the white face leader of the City zoo, told the reporter of Science Scene in an email that Saki Monkey was born in Helsinki Zoo and is 9 years old this year. The average weight of adult female monkeys is about 3 to 4 pounds (1.4 to 1.9 kg) and the body length is 32 to 40 cm. "The tail is usually as long as the body," walrus said.

Although Bea has not been measured recently, Walrus estimates that her figure may be the "larger end". However, the representative of the zoo explained on Twitter that despite this, Biya still looks big, not because of her strict weight lifting and violent protein shaking, but because of the illusion caused by her thick furry fur.

Finnish photographer Santeri Oksanen took this photo in February; At that time, he was visiting the zoo and practicing taking pictures of wild animals. Later, he shared these photos on Flickr. He told Life Science in an email. When Oksa stood outside the monkey's habitat, Bea photographed "this epic gesture" and examined his territory; At this time, Oksanen took this photo which was later circulated.

"Bea's expression couldn't be better," Oksanen said.

People know little about the social habits of wild Saki monkeys, but during his imprisonment, Wolroth explained that monkeys usually live in a small family of four people, and the most common groups are parents and offspring. However, saki monkeys can also form a group composed of multiple males or females, including as many as 12 monkeys. Men usually dominate the captive population, but the group hierarchy is flexible, and sometimes women will lead like Bea. WaulrRoOS said that "kdspe" and "kdsps" are more threatening to Bea's magical floating ability, and many types of animals will make their fur (or feathers) look bigger when threatened. However, Saki monkeys usually don't attack each other, and unusual fluff, such as be a's display, "is usually just to show off to other team members," Wahlroos said.

"A strong appearance can be enhanced by vigorously shaking branches," she added.

Photo: Lovely and magical long-tailed monkey face, precious primate: Chimera monkey Photo album: Sneezing snot monkey was first published in the journal of life science.