Kangaroos live in Australia. Kangaroos can jump 9 metres. They can jump very fast - 30 kilometres per hour. Baby kangaroos are very small. They are only 3 centimetres long. They can't jump and they can't see. They can't see when they are 9 week old. Baby kangaroos can jump when they are 8 months old. They can't run and they can't walk.