Monday, March 7, 2011

16 Two Headed Animals

Well, the saying goes, two heads are better than one and these 10 two-headed animals put that saying to the test, literally.

Bicephalic or tricephalic animals are the only type of multi-headed creatures seen in the real world and are formed by the same process as conjoined twins: they result from the secondary union of two originally separate monozygotic embryonic disks.

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