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As part of the first full excavation of Egypt's ancient Dog Catacombs, scientists examine 2,500-year-old animal remains—a small sample of the roughly eight million animal mummies in these tunnels.
Likely supplied by ancient puppy mills, most of the mummies are dogs, and many were just hours old when taken for mummification, according to new research based on the summer 2010 excavation.
Snaking beneath the desert at the ancient royal burial ground of Saqqara (map), the Dog Catacombs were discovered more than a century ago. But only now is research shedding light on the massive number of mummies found in this complex of tunnels and chambers dedicated to Anubis (picture)—jackal-headed god of the afterlife.
Poorly mummified and piled high, the carcasses long ago deteriorated into indistinct heaps, experts say.