16. Gila Monster: Diabetes Innovation
This venomous lizard’s saliva contains exendin-4, a peptide remarkably similar to human GLP-1 hormone. Scientists developed exenatide and later semaglutide from this compound. These medications enhance insulin secretion and help manage type 2 diabetes. Their ability to promote weight loss expanded their use to obesity treatment. The discovery shows how deadly venom proteins can transform into lifesaving medicines through careful pharmaceutical development.