I am fairly sure that a shark skeleton is cartilage. So it would not be hollow but solid and not quite bone.
What I know for
sure is that escaping a shark attack gets the girls! In my younger years a mate of mine busted up his shoulder in an accident. To fix it, the surgery left him with a big crescent shaped scar on the front and back of his shoulder, just like a bite mark. “What happened to your shoulder?” the babes on the beach would say. “Great White…..don’t like to talk about it” was the reply. Worked every time!
“ I swam out and saved him by poking the shark in the eye.” Sadly did not have the same result!
Fact. Shark nets in Durban kill loads of sharks un necessarily.
WW