Watch NATURE Sunday, August 12 at 8 p.m. (ET) on PBS (check local listings) for an encore presentation of HOLY COW.
To India's millions of Hindus, the cow is a holy animal that cannot be harmed. Since the faith first evolved more than 3,000 years ago, respect for animal life has been a central theme in Hindu life. Watch how the cow is revered in modern India.
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