Once your vet has cleared your kitten as free of disease and parasites, it’s safe to let your new kitten explore its new surroundings and other pet roommates. Handling and playing with your kitten at least once a day will help him form a strong emotional bond with you. If you have children, monitor their introduction to the new kitten to make sure it’s a positive experience for both the kitten and child.

Another unusual feature is that the cat cannot produce taurine,[note 1] with a deficiency in this nutrient causing macular degeneration, wherein the cat's retina slowly breaks down, causing irreversible blindness.[103] This is due to the hepatic activity of cystinesulfinic acid decarboxylase being low in cats. This limits the ability of cats to biosynthesize the taurine they need from its precursor, the amino acid cysteine, which ultimately results in inadequate taurine production needed for normal function. Deficiencies in taurine result in compensated function of feline cardiovascular and reproductive systems. These abnormalities can also be accompanied by developmental issues in the central nervous system along with degeneration of the retina.[118]

It was long thought that cat domestication was initiated in Egypt, because cats in ancient Egypt were venerated from around 3100 BC.[11][12] However, the earliest indication for the taming of an African wildcat (F. lybica) was found in Cyprus, where a cat skeleton was excavated close by a human Neolithic grave dating to around 7500 BC.[13] African wildcats were probably first domesticated in the Near East.[14] The leopard cat (Prionailurus bengalensis) was tamed independently in China around 5500 BC, though this line of partially domesticated cats leaves no trace in the domestic cat populations of today.[15][16]