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Aug 20th, 2019
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  1. "Octopuses have three hearts."/
  2. "The plural of octopus is octopuses."/
  3. "Aristotle thought octopuses were dumb."/
  4. "Two-thirds of an octopus’ neurons reside in its arms, not its head. As a result, the arms can problem solve how to open a shellfish while their owners are busy doing something else, like checking out a cave for food."/
  5. "Octopus ink doesn’t just hide the animal, it physically harms enemies. It contains a compound called tyrosinase which causes a blinding irritation when sprayed in a predator’s eyes. It also garbles creatures’ sense of smell and taste. If an octopus doesn't escape the cloud of ink, it can die. "/
  6. "Octopuses have blue blood. To survive in the deep ocean, octopuses evolved a copper rather than iron-based blood called hemocyanin, which turns its blood blue."/
  7. "A female octopus can lay up to 400,000 eggs."/
  8. "Female octopuses stop eating after laying eggs. When the eggs hatch, the female’s body turns on her. Her body commits cellular suicide, starting from the optic glands and rippling outward through her tissues and organs until she dies."/
  9. "Octopuses are solitary animals and do not live in groups."/
  10. "After mating, male octopuses wander off and die within a few months."/
  11. "Octopuses make their own gardens. They collect shells and other objects to create gardens around their lairs."/
  12. "The smallest octopus specie is the Atlantic pygmy, whose arms are less than 4 inches long."/
  13. "The largest octopus specie is the Giant Pacific octopus. The biggest recorded reached up to 30 ft. long and weighed 600 lbs."/
  14. "There are over 300 different species of octopuses."/
  15. "Octopuses have the ability to regrow severed arms."/
  16. "Octopuses have beaks hidden in their heads. The beak is made of keratin and is used to deliver venom to prey and crush crabs and mollusks."/
  17. "Sensory receptors called statocysts keep the pupils balanced as the octopus moves, which allows it to see the same whether it upside down or right-side up."/
  18. "The Blue-ring octopus is lethal. It's one of the most venomous animals in the world, with enough lethal tetrodotoxin in its body to suffocate 10 adults."/
  19. "An octopus can only live from 1 to 5 years."/
  20. "Tentacles are reserved for squid, cuttlefish and nautiluses. Octopuses have eight arms, zero tentacles."/
  21. "When an octopus swims, the heart that pumps blood to its organs stops beating, so crawling is a more efficient, less exhausting alternative."/
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