Scientists Discover Famous 'Oldest Octopus' Was Never an Octopus!

A fossil that scientists thought was the world's oldest octopus turned out to be something completely different—a relative of the nautilus [a spiral-shelled sea creature]! Using special imaging cameras, scientists found hidden teeth that revealed the truth. Now we have to rewrite the history books and figure out when octopuses really first appeared on Earth, which is pretty cool!