dog is often called "man's best friend"
dogs are easy to train and make loyal companions.
baby dogs are called "puppies".
did you know that puppies cannot see or hear for the first two weeks of life?
all puppies are born with blue eyes, but their eyes turn a permanent color
when they're about one month year old.
Dogs can hear very high and very low noises that human cannot.
they can detedt sounds that are four times farther away humans are able to hear.
fact from :
Playhouse Disney Encyclopedia