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.
The seawater enters the mantle through the opening near the head, and passes over . Oxygen diffuses from the water into the blood, and is transported to the gill (or branchial) hearts by a network of many blood vessels. The colossal squid has two , each with 20 to 80 gill filaments on either side, which .