First, the news, such as it is: Technically he is not a cow, but a steer a neutered male.
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John Dawes; Dr. Breeze March 22, at 2: Gut flora in cattle include methanogens that produce methane as a byproduct of enteric fermentation , which cattle belch out. Wants to Trade Cows for Birds".
Australia's Big Things: just how big are they?
Journal of Comparative Psychology. In some regions, such as parts of India, cattle have significant religious meaning.