The blue-lined octopus (Hapalochlaena fasciata) is only a few centimeters long, yet it may be one of the most dangerous marine animals on Earth. That's because, as part of the blue-ringed octopus ...

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 ...

Octopus mating behaviors can be quite deadly. Many species are cannibalistic, making the entire prospect of mating dangerous, and female octopuses often die after laying one clutch of eggs. Their ...

(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 ...

Octopuses are among the most neurologically complex invertebrates, famed for their extraordinary dexterity. Their eight arms allow them to capture hidden prey, communicate, explore, and even mate ...

An octopus named Ghost will tend to her eggs that will never hatch, a California aquarium said. Screengrab from @Aquariumpacific on Instagram. A dying octopus will devote the rest of her life to ...

Manuel Ugarte made his debut for Manchester United on Saturday and he already has a nickname in the dressing room. The nickname is likely to stick if Ugarte can prove himself as a key player at United ...

Scientists have discovered that octopuses don't have a dominant arm, but they more often use their front arms for tasks.