Smithsonian biologists are using heart monitors designed for humans to study how high stress levels in animals can hinder their ability to thrive.
Originally published by CBS News
By David Schechter, Seiji Yamashita
During his regular checkup, a 9-year-old clouded leopard named Masala undergoes a procedure to get a tiny heart monitor implanted under his skin at the Smithsonian's Conservation Biology Institute in Front Royal, Virginia.
