National Geographic Society

  • Connect:

Finsanity Facts

Looking at a custom made aquarium.

Looking at a custom made aquarium. (View larger version)

Photograph by Lindsey Snell.

Published
  • After joining the Andretti Sports Team in 2010, Ryan Hunter-Reay earned the team its first victory since 2008 by winning the Gran Prix of Long Beach.

  • The Tennessee Aquarium has approximately 10,000 animals.

  • The West Coast Sea Nettle Jellyfish get its scientific name from the Greek word Chrysaora, referring to the son of Poseidon and Medusa. Meaning "golden sword," it is a warning of the stinging ability of these jellyfish.

  • The giant Pacific octopus is the largest known octopus species and has the ability to drastically change the color and texture of its skin. These abilities not only help the octopus camouflage, but they can also be used to communicate warnings to other octopi.

  • At the Tennessee Aquarium, the octopi are given puzzles to solve such as a lidded jar with a piece of food inside. The octopi quickly learn to unscrew the tops of the jars to get to the food inside.

  • The Giant Pacific Octopus has over 2,000 suckers and can lift 700 pounds.

  • Two octopi walk into a bar? Yes, but "octopuses" is also correct and more commonly used.

  • The fiberglass used to make Living Color tanks is literally woven fibers of glass. This won't dissolve in water but can be harmful if ingested by humans.

  • Rust poisoning can destroy a fish's protective coat of slime, which is why one must be careful of the extra amenities placed in fish tanks.

  • The most dangerous cephalopod is the small blue-ringed octopus, which produces highly toxic saliva powerful enough to kill a human.

  • The world's largest octopus species is the giant Pacific octopus. It's not uncommon for these giants to reach over 16 feet in length and weigh more than 110 pounds.

  • Did you know an octopus will intentionally lose one of its arms as a decoy to predators, allowing it to escape? A new arm will regrow in six to eight weeks.

  • Octopuses die shortly after reproducing. Males only live a few months after mating, and females are genetically programmed to expire shortly after their eggs hatch.

  • Octopuses have three hearts. Two of them pump blood through the gills, while the third pumps blood through the rest of the body.

  • If frightened, an octopus will contract muscles around its ink sac, expelling a murky black substance that lets it escape behind the inky curtain.

1 comments
Valencia Garcia
Valencia Garcia

Enjoyed the info.i never knew the Oct had 3 hearts.thank you.