The blue-lined octopus is a creature of paradox. It’s a small yet deadly creature with enough paralyzing venom to kill a man. It’s also got a dazzling colorful display but a voracious appetite. To top ...

Male blue-lined octopi (Hapalochlaena fasciata) have been found to use venom on their sexual partners ... she needs the protein now she is eating for hundreds. In some species, the males appear ...

The small cephalopods use the venom to protect themselves and kill their ... Females are much larger than males, and after copulation, females often eat their partners. But males have evolved ...

Their venom is called neurotoxin tetrodotoxin, or TTX, and is created by bacteria that live in a symbiotic relationship with the octopuses. The toxin is stored in their salivary glands ...