You wouldn’t think a giant octopus could hide in plain sight for decades. But researchers have now learned that the giant Pacific octopus (GPO)—the largest known octopus on Earth, ranging from California to Alaska to Japan—is actually two species. Now that we’ve been properly introduced to the new “frilled giant octopus,” we’ll need to learn more about it to ensure its survival.

Source: A New Species of Giant Octopus Has Been Hiding in Plain Sight