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 ...

In 2002, evolutionary biologist Jenny Graves shared a controversial calculation. The human Y chromosome, she wrote two years later in a commentary, "is running out of time." The male-determining sex ...

The California two-spot octopus (Octopus bimaculoides) is native to the coast of California and Mexico and is identified by their bright blue eyespots. (Roger T. Hanlon/Marine Biological Labratory) ...

Researchers from Tokyo Metropolitan University have taken a big step in solving the mystery around why animals evolve sex chromosomes. It had long been proposed that sex chromosomes evolve to reduce ...

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 ...

Tokyo, Japan – Researchers from Tokyo Metropolitan University have taken a big step in solving the mystery around why animals evolve sex chromosomes. It had long been proposed that sex chromosomes ...

Research into sex chromosome evolution in reptiles and amphibians has unveiled a remarkable diversity in the mechanisms governing sex determination. Both genotypic sex determination (GSD) and ...