Human: Is it true that the ostrich carries its young on its back? Assistant: 
Yes, the ostrich is a large bird that can carry its young on its back. The ostrich is the largest living species of bird and has an average weight of around 100 pounds (45 kg). It is also one of the fastest animals in the world, reaching speeds up to 70 mph (112 km/h). So the ostrich can carry its young on its back.