are ?RE WE 'CHIMERAS'' being composed as we arew of cells with different embyonic origins?

 

The Chimera on a red-figure Apulian plate, c. 350–340 BC (Musée du Louvre)

in classical Greek and Egyptian myth, chimeras are depicted as having parts with the morphological characteristics typical of different species.

 The chimera of Greek mythology, for example, has the head of a lion, the body of a goat, and the tail of a serpent.

 Not all chimeras are mythical, however. In fact, each one of us is most likely a chimera, according to the modern scientific definition of a chimera as a single organism composed of cells with different embryonic origins (Nagy and Rossant 2001).