Nov 20 2008
Animals, pets: fish, dogs, cats, birds, reptiles, horses, rabbits, hamsters and others
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Animals are a major group of organisms, classified as the kingdom Animalia or Metazoa. In general they are multiÂÂcellular, responsive to their environment, and feed by consuming other organisms or parts of them. Their body plan becomes fixed as they develop, usually early on in their development as embryos, although some undergo a process of [...]