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Mad cow disease is in the news again, with tests confirming the second case in the United States since December 2003. Learn how this brain disease affects livestock and people. See more »
cattle library
Cattle grazed the open plains. Today the cattle industry is big business as a major food source. People raise cattle primarily for their beef, leather and milk.
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Do cows pollute as much as cars?
Cow flatulence produces the greenhouse gas methane, which is linked to global warming. Find out how scientists are working to reduce cow flatulence in livestock.
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How Mad Cow Disease Works
Mad cow disease is in the news again, with tests confirming the second case in the United States since December 2003. Learn how this brain disease affects livestock and people.
See more »
Bison
Bison, a hoofed animal related to cattle. The American bison, a species native to North America, is popularly called buffalo.
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Buffalo
Buffalo, a hoofed animal native to Africa and Asia. It is closely related to the domestic cattle raised in Europe and America.
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Cattle
Cattle, the collective term for the domestic cow, bull, and steer, and the zebu. It is also used to refer to other animals of the genus Bos, including the banteng, gaur, kouprey, and yak.
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Cow
Cow, an adult female animal of the cattle family. (The term is also applied to females of other animals whose males are called bulls.
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Kouprey
Kouprey, an ox native to Southeast Asia. The kouprey was unknown to the Western world until the 1930's, when one was sent to the zoological gardens in Paris.
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Musk Ox
Musk Ox, or Musk Sheep, a grazing animal of the Far North. It is neither an ox nor a sheep but is related to both.
See more »Gaur
Gaur, a species of large, wild cattle of India, Burma, and southeastern Asia. The species reaches a much larger size than any other kind of cattle.
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Ox, any individual animal of the cattle genus, Bos, including domestic cattle and the banteng, gaur, kouprey, and yak.
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Yak, an ox of China and India. The yak lives at altitudes of 13,000 to 20,000 feet (3,960 to 6,100 m).
See more »Zebu
Zebu, a humped animal of the cattle family, native to India. The zebu has a large, fatty hump over its shoulders; a large fold of skin, or dewlap, hanging from its throat; and large, drooping ears.
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