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===Carnivore===
 
===Carnivore===
 
*Control over the external anal sphincter is learned early in life.
 
*Control over the external anal sphincter is learned early in life.
 +
*Defeaction reflex increased by contraction of the abdominal muscles and closure of the vocal cords to increase the pressure in the abdominal cavity.
    
===Ruminant===
 
===Ruminant===
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