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Doctors have transplanted a pig's heart into a man for the very
time. Doctors in the USA say David Bennett, 57, is doing
after his operation. Mr Bennett was very
. Giving him the pig's heart was his only
of staying alive. Bennett spoke to
the day before the operation. He said: "It was either die or do this
. I want to live. I know it's a
in the dark, but it's my
choice." The pig's heart came from a genetically-
pig. Scientists changed the pig's
so its heart would be able to function in a human.