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 ...

An Australian diver recently captured footage of a courtship display by an octopus in Rye, Victoria. Emily May, who runs the @emilymaydive Instagram account, was on a diving expedition at Rye Pier ...