Somehow, a large orange octopus has been riding a mako shark off the coast of New Zealand. Researchers are mystified.

The octopus in question was no lightweight. It was a Māori octopus, the largest octopus species in the Southern Hemisphere.

Imagery of the "amazing" act was caught by Amy's colleague off the country's western coastline near Mandurah, 70 kilometres south of Perth, and the pictures even show the octopus fighting back in a ...

In nature, interactions between species are often framed in terms of survival—those that hunt and those that are hunted. But ...

Male blue-lined octopuses inject a powerful neurotoxin into the hearts of females before mating to avoid being eaten, ...

The venomous bite simplifies the octopus's ingestion of its prey since the toxin incapacitates the animal, rendering it unable to escape. Their nutrition is based on hunting and not scavenging ...

This is the first time that evidence has been found of a neurotoxin being used in mating, rather than for hunting or defense ... But while other octopus species have evolved longer mating arms ...

Scientists have discovered that when mating, male blue-lined octopuses will inject a powerful, incapacitating neurotoxin into ...