Discover how researchers identified an octopus' ancient sex chromosomes and why their genetic history is such a mystery.

E/V Nautilus was named for the submarine in Jules Verne’s fiction classic “Twenty Thousand Leagues Under the Sea.” The sub’s name traces back to the curled, hard-shelled mollusk.

University of Oregon researchers have identified a sex chromosome in the California two-spot octopus. This chromosome has likely been around for 480 million years, since before octopuses split apart ...

Imagine creatures that have survived since the time of dinosaurs. Species like the tuatara, sturgeon, crocodile, hagfish, chambered nautilus, platypus ...

After 15 years of relentless searching and more than 1,000 expeditions, NOAA researchers have achieved an unprecedented feat: spotting a living nautilus in its natural habitat. This discovery is ...

And after more digging, they also found evidence for the chromosome in the nautilus, a mollusk that split apart from the octopus approximately 480 million years ago. The fact that these species ...