Researchers documented risk-averse behavior in male octopuses to safeguard a specialized reproductive arm. The right third ...

The California two-spot octopus is a solitary creature. How exactly they manage to find suitable mates has been one of the ocean’s best-kept secrets. Now scientists have discovered that male octopuses ...

Mature male octopuses have a specialized 'hectocotylus' for transferring spermatophores containing sperm. Research by Keijiro Haruki and colleagues at Nagasaki University has revealed that a small ...

It’s an octopus-eat-octopus world. Scientists have discovered that mating, male blue-lined octopuses will inject a powerful, ...

The specialized arm that male octopuses use for mating is also a sensory organ that can detect the ovarian hormone progesterone, according to new experiments conducted by Pablo Villar and colleagues.

The love life of a male blue-lined octopus is tough. Like praying mantises and widow spiders, a female blue-lined octopus will often kill and eat the male after mating. It's just a circle of life for ...

(CNN) — Male blue-lined octopuses inject a powerful neurotoxin into the hearts of females before mating to avoid being eaten, according to a new study. The males have evolved to use a venom called ...