Many were created by HHMI's summer interns . Vertebrate Circulatorium Observe the different ways animals pump blood. Antibiotics Attack Animations and quizzes illustrate how antibiotics target wily bacteria.
Electric Fish Find out how fish use electricity for navigation.
Electrocardiogram Primer A short tutorial on how an ECG works. The Kidney Find out how the kidney works in this animated tutorial. Heart Size in Mammals Find out how an organism's size affects its heart rate. Click here to meet the HHMI student interns who helped create the Click and Learn interactive modules.