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Are octopuses deliberately throwing things at each other?

AILSA CHANG, HOST:

Anyone who was glued to the World Series will know how important throwing things is to human life. What's the game without a pitch, right? But only a handful of animals are known to chuck objects, like elephants, polar bears and a few primates.

ELISSA NADWORNY, HOST:

Well, scientists recently added octopuses to that list.

PETER GODFREY-SMITH: An octopus seemed to sort of drop a bunch of shells on another octopus, and we spent a long while watching that tape, trying to work out if it was deliberate or if it was just accidental.

NADWORNY: Peter Godfrey-Smith of the University of Sydney says they needed more evidence, so he and his colleagues set up GoPro cameras underwater at a site off Australia's coast teeming with the so-called gloomy octopus.

GODFREY-SMITH: It's a scallop bed. It's like a sort of endless seafood buffet for them.

CHANG: It's also unusual because Godfrey-Smith says many octopuses tend to be loners, whereas the ones there interact quite a bit.

GODFREY-SMITH: Sort of very low-key wrestling, arm pokes and things like that.

CHANG: And in the videos they captured, you can see magnificently camouflaged octopuses slowly rise up out of a bed of scallop shells and then fling debris through the water. They captured more than a hundred instances.

GODFREY-SMITH: And we began to see these more dramatic cases, where an octopus will gather a bunch of stuff in its arms, sometimes move a little bit forward and then sort of blast out the material, releasing it from the arms and applying pressure from the jet propulsion device that they have.

NADWORNY: So technically, more of a blast than a throw. But after studying the behavior in more detail, they say the octopuses did appear to aim at others, and those in the line of fire sometimes ducked or raised their arms. The results are in the journal PLOS One.

CHANG: Godfrey-Smith points out that this doesn't mean the creatures are warlike.

GODFREY-SMITH: We shouldn't map it too straightforwardly onto the area of human conflict, human relationships. Octopuses are just doing their own weird thing. It's different from what we do.

CHANG: Although the octopuses did throw things at the scientists' cameras a few times. So, you know, like some humans, perhaps the octopuses weren't too fond of the paparazzi.

(SOUNDBITE OF PHARRELL'S "NUMBER ONE (INSTRUMENTAL)") Transcript provided by NPR, Copyright NPR.

Jason Fuller
[Copyright 2024 NPR]
Christopher Intagliata is an editor at All Things Considered, where he writes news and edits interviews with politicians, musicians, restaurant owners, scientists and many of the other voices heard on the air.
Ailsa Chang is an award-winning journalist who hosts All Things Considered along with Ari Shapiro, Audie Cornish, and Mary Louise Kelly. She landed in public radio after practicing law for a few years.
Elissa Nadworny reports on all things college for NPR, following big stories like unprecedented enrollment declines, college affordability, the student debt crisis and workforce training. During the 2020-2021 academic year, she traveled to dozens of campuses to document what it was like to reopen during the coronavirus pandemic. Her work has won several awards including a 2020 Gracie Award for a story about student parents in college, a 2018 James Beard Award for a story about the Chinese-American population in the Mississippi Delta and a 2017 Edward R. Murrow Award for excellence in innovation.

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SOMOS CONNECTICUT is an initiative from Connecticut Public, the state’s local NPR and PBS station, to elevate Latino stories and expand programming that uplifts and informs our Latino communities. Visit CTPublic.org/latino for more stories and resources. For updates, sign up for the SOMOS CONNECTICUT newsletter at ctpublic.org/newsletters.

SOMOS CONNECTICUT es una iniciativa de Connecticut Public, la emisora local de NPR y PBS del estado, que busca elevar nuestras historias latinas y expandir programación que alza y informa nuestras comunidades latinas locales. Visita CTPublic.org/latino para más reportajes y recursos. Para noticias, suscríbase a nuestro boletín informativo en ctpublic.org/newsletters.

The independent journalism and non-commercial programming you rely on every day is in danger.

If you’re reading this, you believe in trusted journalism and in learning without paywalls. You value access to educational content kids love and enriching cultural programming.

Now all of that is at risk.

Federal funding for public media is under threat and if it goes, the impact to our communities will be devastating.

Together, we can defend it. It’s time to protect what matters.

Your voice has protected public media before. Now, it’s needed again. Learn how you can protect the news and programming you depend on.