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. ...
Squid have three hearts: two and one systemic heart. The branchial hearts pump blood to the gills, where oxygen is taken up. Blood then flows to the systemic heart, where it is pumped to the rest of the body. The systemic heart is made of three chambers: a lower ventricle and two upper auricles.
Nonetheless, the vampire squid is able to live and breathe normally in the minimum zone at oxygen saturations as low as 3%, an ability that few other animals possess. To cope with life in the suffocating depths, vampire squids have developed several interesting adaptations. Of all deep-sea cephalopods, their mass-specific metabolic rate is the lowest