Bones are got from dead animals. Without bones in an animal, that animal would not walk on his hinds and limbs.
Bones enlarge from time to time.
Animal bones, such as bones of animals that are extinct are kept in the museum. Good examples are the dinosaur and the panda.
Bones are still being discovered till today in different locations.
Without bones in our body, we are like match sticks that are tossed up and down!