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Dolphins have few marine enemies. Some species or specific populations have none, making them apex predators. For most of the smaller species of dolphins, only a few of the larger sharks, such as the bull shark, dusky shark, tiger shark and great white shark, are a potential risk, especially for calves. [141]
[73] [74] With sharks, orcas may herd them to the surface and strike them with their tail flukes, [73] while bottom-dwelling rays are cornered, pinned to the ground and taken to the surface. [75] In other parts of the world, orcas have preyed on broadnose sevengill sharks, [76] whale sharks, [77] [78] and even great white sharks.
The great white shark is arguably the world's largest-known extant macropredatory fish, and is one of the primary predators of marine mammals, such as pinnipeds and dolphins. The great white shark is also known to prey upon a variety of other animals, including fish, other sharks, and seabirds. It has only one recorded natural predator, the orca.
In the ocean food chain, large sharks generally only have to worry about keeping orcas at bay — but a new study suggests the apex predators may have to watch out for their own.. Researchers have ...
The remains of Hector's dolphins have been found in the stomachs of broadnose sevengill shark (considered to be their main predator), [11] great white shark and blue shark. [18] [19] Unconfirmed predators of Hector's and Māui dolphins include killer whales (orca), mako sharks and bronze whaler shark. [20]
Dolphins living in shallow coastal waters tend to be the top predator with the exception of young dolphins having to be protected from sharks by their moms. Dolphin communities out in the deep ocean have more threats with shark attacks but living in pods allows them to survive. Other predators, mainly impacting newborns, include sting rays and ...
A humpback whale (Megaptera novaeangliae) A leopard seal (Hydrurga leptonyx). Marine mammals are mammals that rely on marine (saltwater) ecosystems for their existence. They include animals such as cetaceans (whales, dolphins and porpoises), pinnipeds (seals, sea lions and walruses), sirenians (manatees and dugongs), sea otters and polar bears.
The bottlenose dolphin is a toothed whale in the genus Tursiops.They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. [3] Molecular studies show the genus contains three species: the common bottlenose dolphin (Tursiops truncatus), the Indo-Pacific bottlenose dolphin (Tursiops aduncus), and Tamanend's bottlenose dolphin (Tursiops erebennus).