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The Doctor, like all Time Lords, has a binary vascular system — two hearts. Besides that fact, the super-long lives, and the whole regeneration thing, they’re very similar to humans. So could humans have two hearts as well? As part of their “Doctor Who Week” Head Squeeze tackled the question to tell us that sometimes, yes. Humans can.
(via Head Squeeze)
- Anatomically correct chocolate hearts and other organs exist
- Sharks can have two heads
- So can turtles, and one (two?) of them is on Facebook
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