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[72] [73] With sharks, orcas may herd them to the surface and strike them with their tail flukes, [72] while bottom-dwelling rays are cornered, pinned to the ground and taken to the surface. [74] In other parts of the world, orcas have preyed on broadnose sevengill sharks, [75] whale sharks, [76] [77] and even great white sharks.
Livyatan is an extinct genus of macroraptorial sperm whale containing one known species: L. melvillei.The genus name was inspired by the biblical sea monster Leviathan, and the species name by Herman Melville, the author of the famous novel Moby-Dick about a white bull sperm whale.
Screenshot/DiscoveryIn the 34 years since Shark Week first launched, the Discovery network has shown footage of sharks jumping, sharks fighting, sharks migrating, ...
The otodontid sharks have been considered to have been ectotherms, so on that basis megalodon would have been ectothermic. However, the largest contemporary ectothermic sharks, such as the whale shark, are filter feeders, while lamnids are regional endotherms, implying some metabolic correlations with a predatory lifestyle.
The distinct smell of shark liver in the air and gulls diving toward a slick on the water’s surface, as well as a second shark carcass measuring 3.55 meters (11.6 feet) discovered nearby, led ...
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The bowhead whale is among the largest baleen whale species and is distinguished by its round body with an exceptionally curved rostrum, a large head, and long, dark baleen plates. Relative to its size, the bowhead whale has the largest head of any cetacean , [ 11 ] measuring nearly 40% of the total body length. [ 12 ]
The sharks most commonly taken are mako, thresher, sevengill, and on rare occasions, great white sharks. The first recorded incidence of orca predation on great white sharks, in 1997, may have involved an offshore whale. [20]