Inform. 1  Edgar Veytia, attorney general for the Mexican state of Nayarit, has been arrested by federal agents in San Diego and is being held on an indictment on charges that he conspired to smuggle heroin, cocaine and methamphetamine into the U.S. ...
Squids have three hearts. Squids are part of the class of animals called Cephalopods, and almost all of these creatures have three hearts. They also have blue...
Because we're always breathing, using only our lungs, and it's efficient. It's worth mentioning that the three chambered heart makes sense for amphibians because it allows them to shut off the pulmonary circuit when they're under water. They also have gas exchange through their skin and some through the cloaca.