Male octopus injects female with venom

This male octopus poisons the female during mating to avoid being eaten
Male blue-lined octopuses inject a powerful neurotoxin into the hearts of females before mating to avoid being eaten, according to a new study.
Highly venomous male octopuses poison females before sex — to avoid being eaten after mating, scientists say
It’s an octopus-eat-octopus world. Scientists have discovered that mating, male blue-lined octopuses will inject a powerful, incapacitating neurotoxin into the hearts of female octopuses — to avoid being eaten by them when the sea deed is done.
Male octopus injects female with venom during sex to avoid being eaten
Some male octopuses tend to get eaten by their sexual partners, but male blue-lined octopuses avoid this fate with help from one of nature’s most potent venoms
Male octopus poisons its mate to avoid becoming post-sex snack
While unfortunate for the males, becoming a post-sex meal offers the females vital nutrients needed to sustain themselves and their soon-to-be hundreds of gestating offspring. This practice is especially common in animals exhibiting female sexual dimorphism,
These Male Octopuses Use Venom to Subdue Female Mates—and Avoid Being Eaten After Sex
Animals have evolved many different ways of protecting themselves, from prickly quills and razor-sharp teeth to clever camouflage and sturdy shells. Now, scientists have discovered a surprising new technique that appears to be a defense mechanism: Some male octopuses use venom to avoid being eaten by their female mates.
To Avoid Becoming a Meal, These Male Octopuses Sedate Their Mates
The venom of the male blue-lined octopus is made for its predators, its prey, and, apparently, its mating partners. That’s what researchers from the University of Queensland in Australia found after observing the males of the species sedating the females ...
Electric blue octopuses use potent venom to get females to mate — and not eat them
Now, researchers studying the octopuses have learned that not only do male blue-lined octopuses use their venom against enemies, but also against members of their own species — cannibalistic females.
Octopuses Use Venom for Safe Sex, Biologists Reveal
"Mating ended when the females regained control of their arms and pushed the males off," the researchers noted.
Australian Geographic1d
Revealed: the toxic sex life of the blue-lined octopus
Male blue-lined octopuses inject females with venom to paralyse them before mating and avoid being eaten after sex.