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Topic: organs

This undated photo provided by the Salk Institute on Jan. 24, 2017 shows a 4-week-old pig embryo which had been injected with human stem cells. The experiment was a very early step toward the possibility of growing human organs inside animals for transplantation. (Salk Institute via AP) (AP)

A pig with human parts

Malcolm Ritter
(Benjamin Wheelock/Salon)

Sarah Gray
Kidneys (via Wikipedia)

Bjorn Carey - Popular Science