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Like humans, animals can become mummies. They might be preserved accidentally by nature, or on purpose by human hands.
Ancient Egyptians went to great lengths to mummify their favorite pets so they could go with their owners to the afterlife. There were other reasons to mummify animals. Some were thought to be representatives of gods, so they were embalmed with special care. Others were offerings to gods associated with the animal. And some were embalmed because they were considered sacred. Queen Isetemkheb, who lived 4,000 years ago, was buried with her pet gazelle.