-
(#13) Octopuses Can Regrow Their Arms
Octopuses have the ability to regrow severed arms. Research suggests this is due to an influx of the acetylcholinesterase protein, which is produced during the regrowth process.
Source: Scientific American -
(#18) All Octopuses Are Venomous
Every octopus species has venom proteins in its body, which it delivers to prey through biting with its beak. However, only the blue-ring octopus is truly dangerous to adult humans. In fact, it's one of the most venomous animals in the world, with enough lethal tetrodotoxin in its body to suffocate 10 adult men.
Source: National Geographic -
(#4) Octopuses Have Blue Blood
Octopuses have evolved a copper-based blood (rather than iron-based blood, like humans have) that allows them to survive in the deep ocean. This type of blood is blue due to a protein called hemocyanin, and it is efficient at transporting oxygen throughout the octopus's body in low temperatures.
Source: Smithsonian -
(#12) There Are Over 300 Species of Octopuses
Today there are 300 different species of octopuses. The smallest is the Atlantic pygmy, whose arms are less than 4 inches long, and the largest is the seven-arm octopus, which has been recorded at 11 ft. long and weighing up to 165 lbs.
Source: Facts Legend -
(#11) Octopuses Construct Gardens
Some octopuses have been seen collecting shells and other objects to create gardens around their liars. They also carry shells for protection.
Source: OneKind -
(#19) Octopuses Are Great Problem Solvers
Many octopuses have been seen unscrewing lids (even childproof ones!) and removing plugs in order to get to their prey. Researchers that keep octopuses in captivity provide the animals with complicated "toys" that test and develop the animals' cognitive abilities. After all, these clever creatures are known to become easily bored - and a bored octopus can be both a menace to its handlers and a danger to itself if it fixates on escaping its tank.
Source: Facts Legend
New Random Displays Display All By Ranking
About This Tool
Octopuses are extremely complex, mysterious, and talented creatures with many hidden talents. These invertebrate but colorful marine animals have existed for thousands of years, making the ocean world interesting. They are masters of defense and able to disguise their entire body in seconds, due to the lack of a skeleton, they are very agile and can even grow their lost arms.
For centuries, their unique defense mechanism has fascinated biologists. Various octopuses are widely distributed in tropical and temperate waters around the world. The random tool introduced 21 fun facts about octopuses that most people may not know.
Our data comes from Ranker, If you want to participate in the ranking of items displayed on this page, please click here.