In the American Tufts University, scientists have managed to "force" frogs to grow new paws.. This is reported in the journal Cell Reports.

Amputated limbs regenerated with hormones. Experts conducted an experiment on nine amphibians, which have removed the limbs. We chose frogs for research because many amphibians have a mechanism for limb regeneration..

In nine smooth Sprozza frogs, paws were amputated and placed in bioreactors with a gel containing the hormone progesterone. The animals got a day later, after which their limbs grew over nine months..

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Scientists have grown amputated paws to frogs. Bone, nerve and muscle tissues have fully recovered, also “branches” vessels. Under the action of hormones, only the foot could not form..

Previously, scientists from the American Johns Hopkins University artificially raised the human retina. Also, specialists from St. Petersburg managed to grow meat in a test tube..

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