While you’ve been busy scarfing down fried calamari rings, scientists at the University of Pennsylvania have been doing something else with squid. Namely? Studying the cephalopod’s ring teeth for a way to create a material that heals when water’s present, much in the way that those tentacle-bound choppers do. The way the report spotted by Popular Science tells it, the researchers were able to reproduce the type of proteins found in the self-healing squid teeth…