Octopuses can't live on land, because they belong to aquatic mollusks, and octopuses have adapted to the marine environment, so they can't live on land in general. If octopuses are placed on land, they will easily dehydrate and die. However, unlike other fish, octopuses can move on land for a short time. Studies have shown that octopuses may come to the shore for many reasons, and they will stay on the shore for a while. But they know the direction of the ocean very well. After moving on the shore for a while, they will enter the ocean.

As mentioned above, octopuses can leave water for a short time, but how long octopuses can live without water depends on their species. Because the octopus has a mantle cavity in its body, a part of water can be stored in the mantle cavity, so that the octopus can persist for a period of time after leaving the water. However, the persistence time is not fixed. Like some small octopuses, they can persist for a longer time. On the contrary, larger octopuses can persist for a shorter time. Although octopuses can leave the water, try not to let them leave the water for too long to avoid dehydration and death.