The giant Pacific octopus is considered to be long-lived compared to other species, with lifespans typically 3–5 years in the wild. Many other octopuses go through a lifespan in one year, from egg to end of life. To make up for its relatively short lifespan, the octopus is extremely prolific. It can lay between 120,000 and 400,000 eggs which are coated in chorion, and attached to a hard surface by the female. The spawn is intensively cared for exclusively by the females, who continuously blow water over it and groom it to remove algae and other growths. While she fulfills her duty of parental care the female stays close to her spawn and does not leave to go hunting for food, causing her death soon after the young have hatched. The females death is the result of starvation, as she subsists on her own body fats during this period of approximately 6 months. Hatchlings are about the size of a grain of rice, and very few survive to adulthood. Their growth rate is incredibly high. Starting from 0.03 g and growing to at adulthood, which is an increase of around 0.9% of growth a day. Because they are cool-blooded, they are able to convert most of consumed energy into body mass, respiration, activity, and reproduction.