When cooked appropriately with very few simple steps and some patience, octopus is wonderfully incorporated into salads and pasta and makes a flavorful appetizer when grilled with lemon. One heart circulates blood around the body, while the other two pump it past the gills, to pick up oxygen. Tender and buttery soft, nicely cooked octopus is a delicious food that appears in many Mediterranean dishes. If the blood (called haemolymph in invertebrates) becomes deoxygenated - when the animal dies, for example - it loses its blue colour and turns clear instead.ДЄn octopus's three hearts have slightly different roles. The copper-based protein is more efficient at transporting oxygen molecules in cold and low-oxygen conditions, so is ideal for life in the ocean. Well, the blue blood is because the protein, haemocyanin, which carries oxygen around the octopus's body, contains copper rather than iron like we have in our own haemoglobin. Finally, why do octopuses have blue blood?ДЄre you still wondering why octopus blood is blue and what the three hearts do? The researchers say they're not sure what the benefits of living in a densely populated settlement are for these octopuses, but it may just be a case of necessity, with limited den spaces available in the otherwise flat and featureless area. Giant Pacific octopuses can be found more than 330 feet (100 m) underwater. Giant Pacific octopuses can change color in one-tenth of a second.

When their common source of food depletes, octopuses may feed on smaller species of octopus to survive. Young octopuses feed on plankton and other animal larvae. Open-ocean octopuses feed on fish, birds, and snails. Frequent aggression, chases and even den evictions were observed among the octopuses living at Octlantis. Giant Pacific octopuses can grow to 29.5 feet (9 m) wide from the tip of one arm to the tip of another and 44 pounds (20 kg). Bottom-dwelling octopuses primarily feed on mollusks, polychaete worms, and crustaceans such as clams, shrimps, lobsters and snails. The word evolved from the Italian and Spanish names for squid. Octopus is extremely protein-dense and is also a rich source of vitamin B12, selenium, iron, copper, and vitamin B6. The octopus is the largest member of the cephalopod family, which also includes squid and cuttlefish, and can grow up to 30 feet long. Check out nutrition information and age-appropriate serving ideas Tip: Fan of calamari They are squid, not octopus. The octopus is a sea creature with a large head and eight suction cup-adorned arms that are often mistakenly called tentacles.

City living has its advantages and drawbacks, as we all know. Raw octopus is not a safe food for babies and toddlers, but there are plenty of ways to cook and serve this special seafood to young eaters.

Octopus food