Sex chromosomes have reverted to autosomes multiple times in flies

At the GSA Drosophila Research Conference, scientists will present evidence of many reversals of sex chromosome to autosomes in flies. They identified nine independently evolved sex chromosomes in a wider variety of fly species ...

Embryonic stem cells: Reprogramming in early embryos

An Oregon Health & Science University scientist has been able to make embryonic stem cells from adult mouse body cells using the cytoplasm of two-cell embryos that were in the "interphase" stage of the cell cycle. Scientists ...

Visionary or looney? Zuckerberg on spending spree

Facebook's latest multibillion dollar acquisition of virtual reality headset maker Oculus is prompting some people to wonder if CEO Mark Zuckerberg is already living in an alternate reality.

Facing the Windows XP apocalypse? Here are some options

Are you ready for the "XP Apocalypse" on April 8? That's when Microsoft Corp. plans to stop issuing security updates for the aging, but still-popular XP version of its flagship Windows operating system, which by some estimates ...

Stag beetle males give nasty nips despite massive jaws

Armed with a ferocious pair of mandibles, male stag beetles appear well prepared to take on the world. 'Their jaws are not just for ornamentation, they really use them to fight', says Jana Goyens from the University of Antwerp, ...

Canal between ears helps alligators pinpoint sound

Alligators can accurately pinpoint the source of sounds. But it wasn't clear exactly how they did it because they lack external auditory structures. A new study shows that the alligator's ear is strongly directional because ...

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