<P> A feline litter usually consists of two to five kittens born after a gestation lasting between 64 and 67 days, with an average length of 66 days, but from one to more than ten are known . Kittens emerge in a sac called the amnion, which is bitten off and eaten by the mother cat . </P> <P> For the first several weeks, kittens cannot urinate or defecate without being stimulated by their mother . They also cannot regulate their body temperature for the first three weeks, so kittens born in temperatures less than 27 ° C (81 ° F) can die from hypothermia if their mother does not keep them warm . The mother's milk is very important for the kittens' nutrition and proper growth . This milk transfers antibodies to the kittens, which helps protect them against infectious disease . Newborn kittens are unable to produce concentrated urine, and so have a very high requirement for fluids . Kittens open their eyes about seven to ten days after birth . At first, the retina is poorly developed and vision is poor . Kittens cannot see as well as adult cats until about ten weeks after birth . </P> <P> Kittens develop very quickly from about two weeks of age until their seventh week . Their coordination and strength improve . They play - fight with their litter - mates and begin to explore the world outside the nest or den . They learn to wash themselves and others as well as play hunting and stalking games, showing their inborn ability as predators . These innate skills are developed by the kittens' mother or other adult cats, who bring live prey to the nest . Later, the adult cats demonstrate hunting techniques for the kittens to emulate . As they reach three to four weeks old, the kittens are gradually weaned and begin to eat solid food, with weaning usually complete by six to eight weeks . Kittens generally begin to lose their baby teeth around three months of age, and have a complete set of adult teeth by nine months . Kittens live primarily on solid food after weaning, but usually continue to suckle from time to time until separated from their mothers . Some mother cats will scatter their kittens as early as three months of age, while others continue to look after them until they approach sexual maturity . </P> <P> The sex of kittens is usually easy to determine at birth . By six to eight weeks they are harder to sex because of the growth of fur in the genital region . The male's urethral opening is round, whereas the female's urethral opening is a slit . Another marked difference is the distance between anus and urethral opening, which is greater in males than in females . </P>

Does a 10 week old kitten need milk