Which animals look best when they smile?

A smiling snake at the Indian Snake Festival in Vishnupur, India.

Jay Parker and his wife are playing at the San Diego Zoo. They wanted to take a group photo, but the hippo joined them with a smile. The pictures of these hippos smiling and taking photos with them caused a heated discussion on the Internet.

Photographer Tin Man Lee photographed an owl standing on a branch laughing. I don't know what happened to this guy, but his smiling eyes narrowed into a crack.

Muravski was lucky enough to photograph a "smiling spider" in the Hawaiian jungle. The scientific name of this spider is Theridion Grallator, which is only a few millimeters long and non-toxic. The spider's abdomen has a pattern shaped like a human smiling face. Scientists believe that this smiling face pattern is formed due to the natural variation of genes, and it is mainly used to deter other predators.

An American photographer took a group of photos of 4-year-old horses in California. The horse is not afraid of the camera, but "proudly" shakes his shiny brown hair, as if shooting a shampoo advertisement. The photographer said, "He shook his head and fiddled with his hair. It looks as if he just came out of the hairdresser's and was very happy to let me take a picture. There is a photo that seems to record its smile. I guess it must have been thinking about its' female companion'.

Blackpool Zoo in England recently released a series of smiling photos of small animals, such as grinning orangutans, shy smiling lemurs and so on. These photos are designed to bring people laughter and help them spend "Blue Monday".

Photographer Randy Rimland photographed a little lion laughing happily at Riverside Zoo, which made the tourists unable to hold back. Rimland explained: "I thought it was looking at me, so I kept aiming the camera at it for at least five minutes." Then it slowly opened its mouth and seemed to yawn. I quickly took some photos, but it looked like a smile. When shooting animals,

I am always lucky, they are so interesting! "

A Siberian husky dog sits in a wheelchair and runs happily in Melbourne, Australia.

This is an interesting new invention, with which dogs all over the world will grin at you. This dog toy ball was designed by Porky Hefer of Rogz Company in South America, with two rows of big white teeth printed on it to ensure that Wang Xingren will give you a heartfelt smile every time he runs over.