One long bone would not allow for the flexibility of motion which multiple bones, cushioned by intervertebral discs, allow for.
bones are solid
Solid Bones A+
No. Bones are solid.
The bones
No, fish do not have hollow bones. Fish have a bony skeletal structure that is made up of solid bones. The solid bones provide support and protection to the fish's body and contribute to their buoyancy control in water.
i guess it could be in the way that birds have hollow bones
Babies are born with approximately 300 bones. As the baby grows older many of these bones fuse together to become one bone. For example, the babies skull consists of 29 bones at birth but these fuse together to make the solid skull of an adult. The normal adult body contains 206 bones with the smallest being in the ear. Or you could just say hello there. As the big Mac would say himself, thank you sooo much!
they are hollow to be more aerodynamic
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A solid is more compact.
An emu's bones are solid and adapted for long periods of running and walking. A seagull's bones are light and hollow so they can fly easily.
Bones Vessels and others