Worm grows surprising mutation after space visit

There are lots of strange things to discover in space, but flatworms sent to the International Space Station saved the really weird stuff for when they returned to Earth.

That’s when one worm, which had been partially amputated before being launched into space aboard a SpaceX rocket in 2015, grew a second head.

Planarian flatworms are often used in biological studies because of their impressive ability to regenerate parts of their bodies after amputation. A set including both whole and amputated worms was sent to the ISS for a five-week stay and then evaluated back on Earth for an additional 20 months

Source: Worm grows surprising mutation after space visit

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