AIBO is a robot dog made by Sony, the Japanese electronics company.
It costs $2500, and the first 200 sent to the US sold out quickly.
This robot pet is much better than older robots because it walks on four legs instead of using wheels, and because it can stand up again without help if it falls over AIBO' s owner can have a lot of fun with it.
It will chase a bright pink ball, and look upset if it cannot reach it. If someone takes the ball away, AIBO will look angry, and growl like a real dog. When it is happy, it wags its tail and waves a paw . In the future, Sony will make better AIBO robots that will do many more things, and they will be less expensive, as electronic machines become