The face of a human being is friends with a life-saving benefactor for 25 years

The fish with a face like a man always swims to the diver when he hears the signal, letting the benefactor strok and kiss his forehead.

Hiroyuki Arakawa, a 79-year-old diver retired, regularly visits Yoriko, the fish of the Asian sheepshead wrasse for over 25 years, according to Mirror.

Yoriko fish wrapped tangerines with benefactors.(Video: Great Big Story).

Hiroyuki first meets Yoriko in an undersea park in southern Tokyo. Realizing that the fish was exhausted and unable to feed itself because of the injury, Hiroyuki began feeding him five crabs every day for 10 days until he was well again. Since then, he and the fish have become attached.

Every time Hiroyuki dives into the sea where Yoriko lives, he often knocks a gong with a hammer to call it. Hearing the signal, the fish often came and swam around the diver, so that he patted his head and even kissed his forehead.

Hiroyuki thinks that Yoriko has a face very similar to people when looking at him and he is sure the fish knows he is his benefactor."I guess he knows I saved him when he was badly injured. I think everyone can make an animal pay attention when feeding them , " Hiroyuki said.

After the injury, Yoriko seemed to be in good health all the time. The lifespan of Asian fishes is unknown, but the fish can be up to a meter long.

The 79-year-old grandfather was the only one who could get close to the fish.(Photo: YouTube).

A study last year concluded that fish have the ability to identify faces. In the study, fish bearing tropical baskets were shown two shots of the human face from the screen above the tank and trained to select one of the two images by spraying it with water.

When the face is mixed with many other photos, they can choose the right face to be viewed initially at a rate of 81%, although the team removed many recognizable features such as head shape and color. This ratio increased to 86% when the characteristics such as brightness and color were correct.

"Fish have brains that are simpler than humans and have absolutely no brain that people use to identify faces. However, many fishes exhibit impressive visual behaviors and become complete objects. It's good to test whether the brain can simply complete complex tasks, " said Dr. Cait Newport of Oxford University, a member of the research team.