A
kitten
is a juvenile cat. After being born, kittens display primary
altriciality and are totally dependent on their mothers for survival.
They normally do not open their eyes for seven to ten days. After about
two weeks, kittens develop quickly and begin to explore the world
outside their nest.
The word
"kitten"
derives from the Middle English word kitoun, which in turn came from the
Old French chitoun or cheton. Juvenile big cats are called "cubs" rather
than kittens; either term (but usually more commonly "kitten") may be
used for the young of smaller wild felids, such as ocelots, caracals,
and lynxes.