fischer dübel = fischer plug

8 deadliest animals that claim the most lives every year

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In the 1950s, Soviet scientist Dr Vladimir Demikhov shocks the world with his two-headed dog experiments. Dr. Demikhov was a pioneering Soviet surgeon who shocked the global community in 1954 by successfully creating two-headed dogs. Grafting the head, shoulders, and front legs of a smaller puppy unto the neck of a larger host dog. He grafts the head and paws of one dog onto the body of another. One of his creations lives for 29 days. His experiments are remembered for their grotesque and ethically distressing nature but it was driven by a serious by a profound medical quest: proving that complex organs could survive transplantation.