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Energy conservation characterizes sleep in sharks
Energy conservation characterizes sleep in sharks Michael L. Kelly, Selwyn P. Collins, John A. Lesku, Jan M. Hemmi, Shaun P. Collin, Craig A. Radford ABSTRACT: Sharks represent the earliest group of jawed vertebrates and as such, they may provide original insight for understanding the evolution of sleep in more derived animals. Unfortunately, beyond a single
DNA-Based Species Identification of Shark Fins Traded in Thai Markets
DNA-Based Species Identification of Shark Fins Traded in Thai Markets Wanlada Klangnurak, Sirachai Arunrugstichai, Petch Manopawitr, Tassapon Krajangdara ABSTRACT: Shark fins are among the most highly prized seafood products in the world with massive consumption in Asia over the past several decades. The demand for shark fins is a major driver of the enormous population
Revisiting body size trends and nursery areas of the Neogene megatooth shark
Revisiting body size trends and nursery areas of the Neogene megatooth shark, Otodus megalodon (Lamniformes: Otodontidae), reveals Bergmann’s rule possibly enhanced its gigantism in cooler waters Kenshu Shimada, Harry M. Maisch IV, Victor J. Perez, Martin A. Becker & Michael L. Griffiths ABSTRACT: The late Neogene megatooth shark, Otodus megalodon, is known mainly from its