Nautiloids—a lineage of ancient, externally-shelled cephalopods that diverged from their octopus and squid relatives over 400 million years ago—once dominated our oceans. Today, this living fossil is ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers from the University of Oregon have solved a longstanding biological mystery: octopuses utilize a specific chromosome ...

The octopus just revealed another one of its secrets: what determines its sex. University of Oregon researchers have identified a sex chromosome in the California two-spot octopus. This chromosome has ...

While it seems like researchers are finding new fossils all the time, it is actually quite rare for an animal to become fossilized. The vast majority of all animals that ever lived do not become ...

The fossil, found by Jay Anderson in a Steele County gravel pit, was identified as belonging to the genus Endoceras, from the Paleozoic Era. Michael Kjelland (left), a professor from Mayville State ...