Albino turtle born with heart beating outside of its chest

Have you ever heard a turtle’s heartbeat? A normal heart rate for a box turtle is around 40 beats per minute, though it changes with activity level and temperature. For comparison, the average dog’s heart beats 60–90 times per minute! Turtles have three-chambered hearts, while mammals have four. The function is nearly the same—there’s little mixing of oxygenated and non-oxygenated blood in the single ventricle. Because of their bony shells, we can’t use a regular stethoscope to listen to their h