Nautilus: Animal Species Still Living After 480 Million Years. A nautilus is an ancient mollusk that has been living on Earth for 480 million years.

The Nautilus researchers determined that the animal was floating around 65 feet above the ocean floor and was likely a dumbo octopus. "It looks like a Grimpoteuthis species," one researcher can be ...

Sponge, Brachiopod, Comb Jelly, Jellyfish, Nautilus, Horseshoe Crab, Velvet Worm, Lungfish, Coelacanth, Lamprey, Tadpole Shrimp, Martialis Heureka Ant and Bird Louse are some of the oldest animal ...

But despite the nautilus’s ubiquity in our world, scientists know surprisingly little about these animals, whose lineage stretches back 500 million years. For instance, no one has ever seen a ...

Deep sea sub captures rare animal 'that hasn't changed in 245m years' Researchers have spotted a rare and elusive critter in the Pacific Ocean for the first time after 15 years of diving.

Another unique creature that scientists believe lived among ancient Wisconsin's coral reefs was the giant nautilus, a tentacled relative of today's octopi and squid, but with a hard, straight shell.

It took over 15 years and more than 1,000 remotely operated vehicle (ROV) expeditions, but researchers aboard the NOAA Ocean Exploration Trust’s Nautilus finally spotted their research vessel ...