The research suggest octopus and other cephalopods, like squid and cuttlefish, all rely on the ancient chromosome to determine sex.

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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 ...

A new study highlights how life possibly evolved prior to and during the rise of Earth’s oxygenated atmosphere.

“This is just showing one more interesting thing about them: They have really ancient sex chromosomes.” The team was sequencing the DNA of a female California two-spot octopus when they noticed a ...

Octopuses are already some of the strangest creatures on Earth, but scientists have now discovered that they also possess some of the oldest known sex chromosomes! These ancient genetic markers date ...

Caption University of Guam archaeologist Michael Carson measures a cowrie shell from an ancient octopus lure from the Mariana Islands. Carson’s published research on cowrie-shell artifacts found ...

MSU scientists studied microbes in Yellowstone hot springs to understand how life adapted to increasing oxygen levels.

Microbial life in Yellowstone's Lower Geyser Basin may hold clues to the evolution of life's exploitation of oxygen, ...