He, can someone tell me more about gelatin? I'm doing a project and I wanna know why gelatin is soluble.?

Why is gelatin soluble in water? Can you tell me more about gelatin's molecular structure? And how does its molecular structure affects its solubility? Its made up of amino acids but then , why then is it solubel in water? Peptide bonds are covalent bonds and gelatin is a macromolecular, shouldn't it not dissolve in water?