21. South American Pit Viper: Blood Pressure Innovation
This snake’s venom contains peptides that inhibit angiotensin-converting enzyme (ACE). Scientists used this template to develop captopril in the 1970s. As the first oral ACE inhibitor, captopril revolutionized hypertension treatment by targeting the renin-angiotensin system. Its success demonstrated how naturally evolved toxins can inspire medications. Modern ACE inhibitors help millions control blood pressure and prevent heart failure progression. They exemplify the “bench to bedside” pathway from natural discovery to clinical application.