Quick answer
Octopuses feed as carnivores, adjusting with season, age, and what is abundant in Oceans, from reefs to the deep sea. That label is a preferred pattern, not every item an individual might sample.
Key takeaway
Octopuses feed as carnivores, adjusting with season, age, and what is abundant in Oceans, from reefs to the deep sea. That label is a preferred pattern, not every item an individual might sample.
Octopus diet overview
Octopuses (Octopus vulgaris) are best summarised as Carnivore. Anatomy and habitat (Oceans, from reefs to the deep sea) decide whether they hunt, graze, filter, scavenge, or mix strategies across the year.
How octopuses find food
Energy-rich foods are prioritised when available; lean seasons force broader diets or longer travel. Young animals may eat different items or receive food from parents.
Octopus role in the food web
As predators or scavengers, octopuses move nutrients and influence prey or vegetation.
Feeding and human conflict
Never feed wild octopuses. Habituation raises injury risk and can lead to lethal management. Captive diets must match species needs, not generic pet food rules.
Three hearts and blue blood
An octopus has three hearts: two pump blood through the gills and one circulates it to the body. Its blood is blue because it uses copper-based hemocyanin instead of iron-based hemoglobin to carry oxygen, which works well in cold, low-oxygen water. The main heart even stops beating when the octopus swims, which is why many prefer to crawl.
Masters of disguise
Octopuses can change the color, pattern, and even texture of their skin in milliseconds using millions of pigment-filled cells called chromatophores. This lets them vanish against rock, coral, or sand to ambush prey and hide from predators. Some species also mimic other animals or objects entirely.
Sources
Octopus FAQs
What do octopuses eat?
Octopuses feed as carnivores, adjusting with season, age, and what is abundant in Oceans, from reefs to the deep sea. That label is a preferred pattern, not every item an individual might sample.
What is the scientific name of the octopus?
Octopus vulgaris — used in research and conservation listings for octopuses.
Where do octopuses live?
They are associated with Oceans, from reefs to the deep sea. Local presence depends on food, cover, and human land use.
What is the conservation status of octopuses?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.