I’m Sid, a common Sydney octopus. I live off Australia in an area nicknamed “Octopolis” by humans.
A whole bunch of us octopuses live in this sandy area. There’s this one octopus, let’s call him “George,” who tries to mate with me.
One day he was particularly persistent. My eggs weren’t ready for fertilizing that day, so I resisted his advances. But he wouldn’t take “no” for an answer.
So I threw silt at him using a stream of water from my siphon. My siphon is a wondrous contraption—it helps me move when I shoot a jet of water out of it, helps me excavate my den, get rid of waste (my own and food debris) and also get rid of unwanted males!
I shot water out of my siphon and aimed it towards the silt beneath me and voila! A sand storm was directed towards George.
But he wasn’t getting the picture. I sent more silt flying towards him once the current took away my first try.
I’ve got to hand it to him, he ducked at least four times and was successful at dodging on two. I hurled silt ten times and hit him on 5 occasions. After the tenth time, he finally got that I wasn’t interested.
George threw a shell out into the ocean in frustration. We octopuses don’t retaliate (shh! at least the humans haven’t seen us do that!).
But here’s the exciting news about octopuses throwing things and targeting one another. Only a “handful” of other species, including chimpanzees, actually target individuals of the same species.
Not bad company for a mere invertebrate, huh? We only make up 97% of all animals…
For more information see the New Scientist’s “Female Octopuses throw things at males that are harassing them”
Also see “10 Interesting Octopus Facts”