I guess I asked for brief, didn’t I? :smack: 
Their lifespan is drastically reduced by sex, or at least in some species. The female expends so much energy in breeding, birthing, and caring for their eggs that they die soon after. I think males have similar restrictions.
You know your user name would be an exceptional description of a large Octopus.
Jim
Psst Skip, old joke and besides see post #17. 
Jim
Ph’nglui mglw’nafh Cthulhu R’lyeh wgah’nagl fhtagn!
A “real” arboreal cephalopod, as envisioned by the very weird “The Future is Wild.”
An article on octopuses from the Washington Post.
( I’m sorry but I can’t resist. )
Singularly THE best octopus, was eaten at the seaside in Singapore.
Tiny little octopods, on skewers, BBQ’d.
It was spectacular, so yummy, makes my mouth water just thinking of it.
::: swoon :::
Forgive me, I beg of you.
Hmph. Batman can’t change color or squeeze through a tiny tube. And he only has two arms.
The octopus is the smartest, cutest, greatest thing ever to be created. Too bad takoyaki is so delicious, or they would already have taken over the world and bettered us all for it.
Next time, try harder. :rolleyes: