EVERYDAY SCIENCE

Detailed explanation-1: -Unlike fishes with bony skeletons, a shark’s skeleton is made out of cartilage. This is a flexible but strong connective tissue that’s also found throughout the human body, in places like the nose, ears, and in joints between bones.

Detailed explanation-2: -Jaws Made Out Of Cartilage This makes shark’s jaws slightly flexible for a better grab of prey, and still stiff enough for a better biting support through the dense bones or skin of their prey.

Detailed explanation-3: -The cartilaginous fish are jawed fish with paired fins, paired nostrils, scales, two-chambered hearts, and skeletons made of cartilage rather than bone. Examples of the cartilaginous fish include sharks, rays, and skates.

Detailed explanation-4: -The skeleton of the fish is made of either cartilage (cartilaginous fishes) or bone (bony fishes). The fins are made up of bony fin rays and, except for the caudal fin, have no direct connection with the spine.

Detailed explanation-5: -Shark cartilage is the tissue that provides support for fins in sharks (Squalus acanthias). It mainly comes from sharks caught in the Pacific Ocean. Shark cartilage became a popular medicine in the 1970s. But its popularity led to a decline in shark numbers.