1, octopus widely lives in shallow water, and its life span is generally only 3-5 years. Octopus that has lived for 4 years is very rare. After living for 5 years, you can apply for Guinness World Records. There are also giant octopus in the deep sea. They are different, and their life span can reach 100 years. Pacific Giant Octopus is the largest giant octopus, with a long life span and a weight of 272kg. A tentacle can grow to about 10m.

Octopus has a short life span, but its mind is developed. If they live longer, it may be nothing for humans to rule the earth. Among cephalopods, octopus has the highest IQ. They have conceptual thinking ability and can solve complex problems independently. Moreover, the first invertebrate in the world to use tools was also an octopus.