Ancient Aliens: Ancient Alien DNA (Season 10) | History
Ancient Aliens: Ancient Alien DNA (Season 10) | History
Transcript
NARRATOR: Houston, Texas, 2010. Doctors at the Texas Heart Institute examine a 59-year-old man complaining of chest pains and make an astounding discovery. The patient has a three-chambered heart, similar to that of a reptile. Researchers attributed the rare condition to an evolutionary phenomenon called atavism, when a lost trait of a distant ance... Read More
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