Technology such at CAT scans helps scientists at the Smithsonian National Museum of Natural History learn more about the Egyptian practice and attempt facial reconstructions.
Nov. 10, 2011 The museum has two rare bull mummies, and this one had been in storage. The linen-wrapped remains of this bull date to between 300 B.C. and A.D. 400. The bull was a sacred animal to the temple priests because they considered the animal to be the living representative of the sun god, museum scientists say. He was preserved after death to guarantee eternal life. Matt McClain/For The Washington Post Buy Photo