Inky the octopus at National Aquarium of New Zealand in Napier. Photo by National Aquarium of New Zealand.
Inky, an octopus at the National Aquarium of New Zealand, made a spectacular nighttime escape. The contortionist octopus squeezed through a tiny gap at the top of his enclosure, then scuttled 8 feet across the floor to a drain pipe. After sliding 164 feet down the pipe, he dropped down to freedom (or specifically, Hawke’s Bay which opens out into the Pacific Ocean).
According to the aquarium’s manager, Rob Yarrall, “He managed to make his way to one of the drain holes that go back to the ocean, and off he went. Didn’t even leave us a message.”
Blotchy the octopus (Inky’s aquarium mate) decided against adventure and remained at the aquarium.
For more about Inky, see the New York Times.
For more great escapes, see our archive of animal escapes.
Learn more amazing facts about octopuses at our Common Octopus article.
Unlike humans, octopuses are not constantly aware of the location of their arms. So with eight limbs in motion, it’s a wonder how their arms don’t get tangled up together.
According to researcher Guy Levy at the Hebrew University of Jerusalem, “We thought about it and we said, ‘How is it possible that the arms don’t grab each other?'”
Levy and his colleague Nir Nesher conducted a series of experiments with octopus arms. They observed that the suckers on the octopus arm would grab objects within its reach, but it would not grab anything with octopus skin. Their studies suggested that octopus skin has a repellent chemical. The sucker on an octopus arm can “taste” this repellent, so it does not grab on to it.
According to Roger Hanlon, of the Marine Biological Laboratory in Woods Hole, Massachusetts, “In fact, many of the sensory neurons known to occur in cephalopod suckers have unknown functions. The authors have widened our view of octopus sensory perception and provided some stimulating research questions to pursue.”
For more on this study, including a podcast, visit the NPR website.
To learn more fun facts about octopuses, see Animal Fact Guide’s common octopus facts page.