1. Science

    Doctors Have Regenerated a Living Organ for the First Time, Soon We’ll All Be Time Lords (Probably Not)

    Score one for science! A team from the University of Edinburgh has regenerated living thymus organs in mice -- that's the first time a living organ has been regenerated. Ever. It's an exciting development that could have huge potential for medical science in the future. Allons-y!

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  2. Entertainment

    Why I Spoiled the Paul McGann Regeneration, and Why I Would Do it Again

    Paul McGann regenerates into John Hurt in the latest Doctor Who minisode, and I spoiled it in the headline of my article about it -- and spoiled it again just now. We've gotten a few comments asking if I really had to spoil it, and frankly -- yes. Here's why.

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  3. Science

    Flatworms Can Retain Memories After Having Their Heads Cut Off

    Planarian flatworms are simple creatures, but they have some some amazing biological characteristics that have long fascinated scientists. A new study by researchers at Tufts University suggests shows that some flatworms can remember things -- like training that makes them less averse to light -- even after having their heads cut off and allowed to regrow. The new brain the worms develop when they regenerate, it seems, remains the same as the brain they had, down to recollections of the time before their head was rudely separated from their body.

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  4. Entertainment

    Good Night, Matt Smith, and Flights of Weeping Angels Sing Thee to Thy Rest

    Death is inevitable, and sadly so is regeneration. The BBC has announced that Matt Smith is leaving Doctor Who. He will appear in the 50th anniversary and in the Christmas special, during which he will regenerate. Then some new man goes sauntering away. Smith didn't give a specific reason other than, "when ya gotta go, ya gotta go and Trenzalore calls."

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  5. Science

    How Does a Zebrafish Regrow Its Brain? We’re One Step Closer To Understanding

    Zebrafish are the guinea pigs of the undersea world, used by countless researchers across the world to study neuroscience, genomics, and just about everything in between. Though the fish are well understood, they also have qualities that still flummox researchers. Topping that list is the fishes' inexplicable ability to regrow brain cells. The neat trick -- which is severely limited in humans and other mammals -- may have an unlikely origin, as new research suggests that the regenerative process is jumpstarted by inflammation that can be severely damaging to the brain as well.

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  6. Science

    African Spiny Mouse Found to Regenerate Body Parts Just Like Salamanders and Lizards

    Regenerating body parts has always been considered the province of animals like lizards and amphibians -- a nifty trait that mammals left behind on the evolutionary road. That's not true for all mammals, though. Researchers report in the journal Nature this week that the African spiny mouse is able to lose up to 60% of the skin on its back to no ill effect -- and then regenerate that skin, complete with hair, sweat glands and cartilage, instead of the scar tissue most mammals would develop.

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