Most likely a quill.
Yes.
The bony structure that surrounds the brain is known as the skull, or "cranium".
skleton
False
Vertebrae
skleton
Ribs!
If the bony thorax were a closed structure, it would not only be heavier to carry, but would also allow for less physical flexibility.
The social structure and gov. was like a porcupine waiting to be petted.
No, because a shark is not a bony fish as it's skeletal structure is made of cartilage.
Vertebrae
spikes big yellow teeth shrp claws