Re: Why do snails make a squealing sound when you throw them into a fire?

The squeal you heard was the sound of air escaping from the shells as it 
was heated.  It was not coming from the animal itself.

Admin note:  Snails don't have vocal cords,  and don't generally make noise in
the range of human hearing.  When you threw them on the fire, the inside of the
shell would heat, causing the gas within it to expand. As that gas escaped from
around the snail's body it could make a squealing sound such as you heard
-Rob Campbell