Do Newborn Kittens Need Deworming
They do not normally open their eyes until after seven to ten days. After about two weeks, kittens quickly develop and begin to explore the world outside the nest.
They are born deaf, but when their amazing sense of hearing is fully developed by 4 weeks of age, they can hear 65,000 cycles per second (or hertz), whereas we can only hear 20,000.
While their eyesight is undeveloped, they are adept at using their whiskers and sense of smell to get around.
All kittens are born with blue eyes and will have their fully developed eye color at around 8 weeks old. Even the darkest eyed cats once had little blue eyes when they first opened.