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Unlike the great white, which attacks prey from the soft underside, megalodon probably used its strong jaws to break through the chest cavity and puncture the heart and lungs of its prey. The animal faced competition from whale-eating cetaceans , such as Livyatan and other macroraptorial sperm whales and possibly smaller ancestral killer whales ...
The thorax (pl.: thoraces or thoraxes) [1] or chest is a part of the anatomy of mammals and other tetrapod animals located between the neck and the abdomen. [ 2 ] [ 3 ] In insects , crustaceans , and the extinct trilobites , the thorax is one of the three main divisions of the body, each in turn composed of multiple segments.
The thoracic cavity (or chest cavity) is the chamber of the body of vertebrates that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia). The central compartment of the thoracic cavity is the mediastinum .
Megalodon lower jaw with 4 tooth rows and 4 tooth series labeled. "Series 1" contains the functional teeth at the front of the jaw. In taxonomy, shark teeth are counted as follows: rows of teeth are counted along the line of the jaw, while series of teeth are counted from the front of the jaw inward. [19]
A new study finds that megatooth sharks’ warm-blood adaptation and giant size may have played a role in their extinction.
The silhouettes shown here depict megalodon as a robust Lamnid-like shark and are based on the estimated body dimensions proposed by Cooper et al. and a life restoration by Oliver Demuth. [1] However, due to the limited information on life appearance, other body plans have been proposed, and megalodon could have looked substantially different ...
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In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.