squids benefit of three hearts
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.
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...