(Grades 8th – 12th) Specimens included in this kit are squid, mammal heart and dogfish shark. The squid biosmount displays a latex injected and labeled circulatory system. The mammal heart biosmount is labeled mid-sagittal dissection separating the heart into two valves and showing the four chambers, valves, papillary muscles, interventricular septum and aorta. The dogfish shark biosmount features a dissection of a doubly injected dogfish showing internal organs and blood vessels. Most of the liver has been removed.