Home >> Recreation >> Pets >> Cats >> Behavior >> Mating Animal Planet: Adolescence and Sexual Maturity Describes the stages of development in a cat's life from kittenhood to full sexual maturity. The Winn Feline Foundation: The Estrus Cycle of the Queen Explains the estrus cycle and ovulation in queens. Purina Cat Chow: How Often Do Cats Come into Heat? Explains how often cats come into heat and how long the heat period is.
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