Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

MoonRiver

(36,926 posts)
Sun Oct 10, 2021, 09:26 AM Oct 2021

Why do octopuses punch fish? - Yes they do this.



Octopus punches fish in the head (just because it can)
By Mindy Weisberger December 23, 2020

Why do octopuses have eight arms? The better to punch fish with, new research reveals.

These brainy cephalopods sometimes team up with fish to find food; hunting collaboratively like this allows them to cover more area, and it increases their chances of catching prey. However, when big blue octopuses (Octopus cyanea), also known as day octopuses, are displeased with their fish partners, they demonstrate their ire by suddenly punching the fish in the head.

The octopus lashes out using "a swift, explosive motion with one arm," in an attack "which we refer to as punching," scientists wrote in a new study.


https://www.livescience.com/octopuses-punch-fish.html
21 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Why do octopuses punch fish? - Yes they do this. (Original Post) MoonRiver Oct 2021 OP
Thanks for locating some food EYESORE 9001 Oct 2021 #1
I think that's the case! MoonRiver Oct 2021 #2
Yep! Rebl2 Oct 2021 #3
Or,... Volaris Oct 2021 #5
Actually, that is another theory. MoonRiver Oct 2021 #8
Probably for the same reason we do.... paleotn Oct 2021 #4
slug-bug. nt. Hotler Oct 2021 #11
ROFLLLLLLLL!!! BlancheSplanchnik Oct 2021 #6
Octopi: The Assholes of the Sea TlalocW Oct 2021 #7
😂 Duppers Oct 2021 #13
That is a beautiful movie. leftyladyfrommo Oct 2021 #14
I adore that movie! MoonRiver Oct 2021 #18
They wouldn't get away with that.... SergeStorms Oct 2021 #9
They're probably too smart to work with those guys! MoonRiver Oct 2021 #10
Bullies, picking on weak, smaller fish. SergeStorms Oct 2021 #15
Fish need to learn, octopus NOT your friend! MoonRiver Oct 2021 #16
just don't feel like puttin' up stopdiggin Oct 2021 #12
Hehe MoonRiver Oct 2021 #17
Perfect boxing match: Octopus vs. 'roo!1 UTUSN Oct 2021 #19
Reading your post explained why so many fish follow their local octopus friends. I never knew! Judi Lynn Oct 2021 #20
Two more interesting ocean live cams: Judi Lynn Oct 2021 #21

Volaris

(10,269 posts)
5. Or,...
Sun Oct 10, 2021, 10:57 AM
Oct 2021

That's the third crab you missed today!. I'm DONE with your bullshit!!

Either way, pretty funny.

MoonRiver

(36,926 posts)
8. Actually, that is another theory.
Sun Oct 10, 2021, 11:45 AM
Oct 2021

Idea is they're training the fish to find the food. If the fish come up short a punch ensues, to teach them to do better next time. But I don't know if fish are smart enough to put 2 and 2 together like that.

Judi Lynn

(160,515 posts)
20. Reading your post explained why so many fish follow their local octopus friends. I never knew!
Sun Oct 10, 2021, 06:11 PM
Oct 2021

It happened on a live cam which has been operating in the water in Bonaire, off the coast of Venezuela. An octopus socked one of those fish who always cluster around any octopus passing through! I thought it was because they are curious about them!

Here's the Bonaire link. It operates 24/7, sometimes goes down, and the new link shows up in the column in youtube to the right of the screen, under "live" .



Also, operated by the same international oceanic monitoring organization, in Hawaii:



Also, a great link which rotates, also, from a flat zone to a beautiful rocky coral zone,
between two shipping lanes in Miami:



Hover your mouse at the bottom of all three screens to see a red thin bar where you can review the last 12 hours of video at the site, as the cameras are operating around the clock. In Bonaire the light lingers at night a couple of hours after dark due to a light from a restaurant at the top of a hill of coral on the right side of the screen, and large fish come out to look for dinner, big guys like baracuda, cubera snappers, etc. Very interesting.

Thanks for the information, MoonRiver, which solved the mystery about why so many fish follow their octopus friends, and even get socked in the kisser for their trouble at times!
Latest Discussions»General Discussion»Why do octopuses punch fi...