Celebrated on July 10th
Kittens conserve their energy by sleeping an average of 18 hours a day! That gives them plenty of fuel for growing strong and quickly into the adult cats we know so well. Even more interesting is the fact that a certain growth hormone is only released during sleep, which is why they must rest to grow.
One of the most interesting kitten facts? Their eyes open with a bluish hue at about 2 weeks of age, and some breeds — like Siamese, Tonkinese and Ragdoll — keep their blue eye color. You might see a range of colors during the kitten’s first year before her eyes change into their permanent color. Kittens are born blind and don’t even open their eyes for their first week or two after birth. While their eyesight is undeveloped, they are adept at using their whiskers and sense of smell to get around. Fully developed by 5 weeks of age, their eyesight is different from ours.
Play fighting among kittens is a way for them to practice and learn skills for hunting and fighting. It also keeps them in great shape and helps keep them from getting overweight. If you don’t socialize (play with, handle, pet, etc.) a kitten between the ages of 3 and 7 weeks it is unlikely the cat will ever be interested in human affection. This is why feral cats typically aren’t kept as potential cats for adoption if they are trapped.