The average life span of octopus is only about 3 years. If the living conditions are ideal, you can live to be about 4 years old at most. The life span of deep-sea giant octopus can reach 100 years, and the incubation time is as long as 4.5 years. So far, the largest octopus tentacle has been found to be about 10 meter long. Biologists say that there may be more than 15 meters (tentacle length) of octopus in the deep sea.

Octopus habits

Octopus has three hearts and two memory systems (one is the brain memory system, and the other is directly connected with the sucker). Octopus has 500 million neurons and some very sensitive chemical and tactile receptors in its brain. This unique neural structure makes it have more thinking ability than ordinary animals. Scientists believe that octopus is the smartest creature in the ocean except mammals.

In addition, octopus can use its flexible wrist to crawl between rocks, cracks and the seabed, sometimes disguised as a pile of coral, and sometimes disguised as a pile of shiny gravel.