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This also makes it the longest-living octopus – most octopuses only live for 1 or 2 years – which this octopus beats with its brooding period alone. [ 4 ] [ 5 ] Female Graneledone boreopacifica tend to brood their eggs between the depths of 1,200 and 2,000 metres (3,900 and 6,600 ft); the eggs were never unattended.
The only other possible contender for the largest species of octopus is the seven-arm octopus (Haliphron atlanticus), based on a 61-kilogram (134-pound), incomplete carcass estimated to have a live mass of 75 kg (165 lb).
The spoon-armed octopus (Bathypolypus arcticus) can live 1,000 m (3,300 ft) deep, and Vulcanoctopus hydrothermalis lives in depths of 2,000 m (6,600 ft) around hydrothermal vents. [28] Some species, such as Megaleledone setebos and Pareledone charcoti , can surive in the chilling waters of the Antarctic, which reach −1.8 °C (29 °F). [ 44 ]
The smallest are only about 1 centimetre (0.39 in) long and weigh less than 1 gram (0.035 oz) at maturity, while the giant squid can exceed 10 metres (33 ft) in length and the colossal squid weighs close to half a tonne (1,100 lb), making them the largest living invertebrates.
Researchers have identified an extinct vampire squid-like creature that is the first of its kind with 10 functional arms. The earliest known relative of octopuses and vampire squid has been named ...
On average, captive animals (especially mammals) live longer than wild animals. This may be due to the fact that with proper treatment, captivity can provide refuge against diseases, competition with others of the same species and predators. Most notably, animals with shorter lifespans and faster growth rates benefit more from zoos than animals ...
A study of octopus DNA may have solved an enduring mystery about when the rapidly melting West Antarctic ice sheet last collapsed, unlocking valuable information about how much future sea levels ...
Scientists were expecting the octopus to work on problem-solving solutions by understanding how the screw top lid works and opening it with its arms. But the octopus bypassed the screw top completely.