The Pacific giant octopus found from the United States to the Pacific northwest coast is the largest octopus species in the world. According to the measurement, it is about 3 to 5 meters long and weighs nearly 10 to 50 kilograms. Each leg has 280 suckers. If they want, they can catch anything and live in the deep sea. It is usually found at a depth of 120 meters. The females of this species can lay 90,000 eggs, and most of them die after laying eggs. They live alone in the kelp fields at the bottom of the sea and feed on kelp.

2. blue-ringed octopus

In the western Pacific, the blue-ringed octopus is one of the most beautiful octopus species in the world. Most of them live near Australia. They all have very beautiful blue stripes, which can reach 20 cm in size and are very calm.