What is the animal in the picture?

The longest sea cucumber in the world is 4.5 meters long.

A Japanese aquatic photographer found a huge sea cucumber about 4.5 meters long at the bottom of the sea near Amami Island in Kagoshima Prefecture, and successfully photographed it.

According to experts, this is the longest sea cucumber found in the world so far, and it is probably another new variety of sea cucumber.

Mr. Chu Shanyong, an aquatic photographer who discovered and photographed this giant sea cucumber, is 54 years old this year. In 65438+February last year, he saw a tree trunk crawling slowly on the white sand near Amami Island in Kagoshima Prefecture, with a water depth of18m. Looking closer, Chu Shanyong was surprised. It turned out to be a live sea cucumber. According to him, this sea cucumber is about 4.5 meters long and about 10 cm in diameter. Its body is reddish brown, and there are many tentacles around its mouth to catch food. There is a lot of water in its body, which seems unsuitable for eating. Lin