Findings:
Through my findings, I found that octopuses do, in fact, throw debris like rocks, shells, and algae. Studies found that female octopus throw more debriefs than males, with 90 throws by females and 11 by males, with female octopus clearly leading. Interactions in which debris would be thrown include social interactions, mating, and fighting. All sources supported the claim that female octopuses throw debris at males for numerous reasons, whether they are just nearby or attempting to mate. It's important to note that not all debris being thrown has intent: 32% is connected to den cleaning, and 8% connected to post-eating cleanup. The claim specifically states that rocks are thrown without acknowledging that octopuses don't just exclusively throw rocks. This claim oversimplifies the octopus's behavior, making it sound as if the debris thrown is always intentional and exclusive to females. The statement is true, but it is not always targeted and intentional.
The link on the post took me to a social media platform called Blue Sky. The source at which the post was referencing was a short clip of an octopus with the words “Female octopus are being observed throwing objects at males who refuse to leave them alone” with the caption “Female octopuses throw rocks at males that bother them, documented in Octopus tetricus” the social media post gave no source or context to the video other then the caption . This is not a strong source to begin explaining the over-exaggeration and misleading content of the original news detective post.
Sources:
In the line of fire: Debris throwing by wild octopuses | PLOS One
This study observed octopuses in the wild throwing debris. It found that 90 throws were made by females and 11 throws were made by males. This study also showed the data reflecting the different contexts for throwing debris, including 32% den cleaning and 8% after eating.
“There were 90 throws by females and eleven by males, a ratio of 8.9:1.”
“Interactive throws were preceded by an interaction, within 2 minutes, with another octopus. Interactions included fights, mating attempts, and approaches or reaches with one or more arms toward another octopus, followed by an apparent reaction by another octopus (ranging from alerting to redirection to physical contact)."
Octopuses throw objects at one another, researchers observe | Science | The Guardian
This article breaks down the 32% den cleaning and 8% after eating statistics. Also discussing that not all throwing is intentional or aggressive, explaining that the behavior is more complex than just targeting the male octopus
“In two observations, this octopus repeatedly threw debris at another. These and other interactions may have arisen out of a desire to assert personal space, the researchers posit.”