Specification Brand : Carolina BulletPoint1 : Dogfish shark preserved in formalin. Specimen is 27"+ and single injected (red arteries). One specimen is single packed and shipped in a vacuum-sealed bag. Price listed is for 1 specimen. BulletPoint2 : From our beginnings in 1927, Carolina Biological Supply Company has grown to become a leading supplier of science teaching materials for all levels of education. Today, from our headquarters in Burlington, North Carolina, we serve customers worldwide, including teachers, professors, homeschool educators, hobbyists, and professionals in health and science-related fields. BulletPoint3 : When you shop with Carolina, you're not alone! All of our products are backed by unparalleled technical support, available from 8am to 6:30pm, ET, Monday through Friday. Live chat is available from 8am to 5:30pm ET, Monday-Friday. Contact information (Live Chat, email, and phone) is provided after placing your order at Amazon. ExternallyAssignedProductIdentifier1 : 0840132603515 ExternallyAssignedProductIdentifier2 : 840132603515 ItemName : Formalin Dogfish Shark, 27"+, Single Injection, 1 Per Bag ItemPackageQuantity : 1 ItemTypeKeyword : science-classroom-specimens Manufacturer : Carolina Biological Supply Company NumberOfItems : 1 PartNumber : 226721 ProductDescription : Product Details The dogfish shark, a member of the class Chondrichthyes, is a popular dissection specimen in general biology and anatomy courses. It is useful for learning about cartilaginous fish and for studying comparative and vertebrate anatomy. Mature specimens allow for a thorough investigation of adult structures. Larger size options (27+) are ideal for students working in pairs or small groups. Dogfish sharks have many characteristics intriguing to students, including their: * Cartilaginous skeleton * Five pairs of gill slits * Claspers (male only) * Two-chambered heart * Spiral intestine * J-shaped stomach * Lack of a swim bladder and operculum Product Features * Single injected (red arteries) for effortless examination of the arterial system * Soaked in Carosafe, then individually packed and shipped in a vacuum-sealed bag for easy distribution * Prices listed are for 1 specimen Carosafe Carosafe preservative and holding solution for biological specimens contains no formaldehyde and is not a tissue fixative. Most Carosafe specimens were first preserved with a formalin solution and then washed before placement in Carosafe. Specimens are held in Carosafe prior to shipment, producing formalin-preserved specimens that, when dissected, minimize formaldehyde exposure. ProductSiteLaunchDate : 2021-02-12T20:35:16.607Z UnitCount : 1