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The common octopus can hear sounds between 400 Hz and 1000 Hz, and hears best at 600 Hz. [61] Octopuses have an excellent somatosensory system. Their suction cups are equipped with chemoreceptors so they can taste what they touch. Octopus arms move easily because the sensors recognise octopus skin and prevent self-attachment. [62]
Common octopus in the Aquarium of Seville, Spain O. vulgaris from the Mediterranean Sea Common octopus, Staatliches Museum für Naturkunde Karlsruhe, Germany Common octopus of Portugal Common octopus near Crete. Octopus vulgaris grows to 25 cm (10 inches) in mantle length with arms up to 1 m (3.3 feet) long. [3]
It has the common name algae octopus due to its typical resting camouflage, which resembles a gastropod shell overgrown with algae. It is small in size with a mantle around the size of a small orange ( c. 7 cm or 3 inches) and arms 25 cm (10 inches) in length, and is adept at mimicking its surroundings.
Octopus is the largest genus of octopuses, comprising about 100 species. These species are widespread throughout the world's oceans. Many species formerly placed in ...
East Pacific red octopus, rescued from a gull near Los Osos, California. Octopus rubescens (commonly the East Pacific red octopus which is a Cephalopod, and also known as the ruby octopus, a preferred common name due to the abundance of octopus species colloquially known as red octopus [1]) is the most commonly occurring shallow-water octopus on much of the North American West Coast and a ...
Amphioctopus fangsiao, called webfoot octopus, [2] is a species of octopus, a cephalopod belonging to the genus Amphioctopus. [3] It is found in the Pacific Ocean, including off the coasts of New Zealand [4] as well as in the Yellow Sea and surrounding Chinese shores. It is also commercially fished. [5] [6]
Octopus tetricus, the gloomy octopus, the common Sydney octopus, [3] or the peachy octopus, [4] is a species of octopus from the subtropical waters of eastern Australia and northern New Zealand. [2] O. tetricus belongs to the Octopus vulgaris species group. All species within the O. vulgaris group are similar in morphology, [5] behaviour, and ...
Typically, the plate fish swims for about 6 seconds (3-43s) and the octopus for 2 seconds (1–20s) and both then rest for 2 or 3 seconds (1–8s flounder, 1–13s octopus) before swimming again. Both keep close to the rippled sand contours of the seabed and the octopus keeps its eyes on the upper side of its body, which increases its ...