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Type A or Antarctic orcas look like a "typical" orca, a large, black-and-white form with a medium-sized white eye patch, living in open water and feeding mostly on minke whales. [ 2 ] [ 4 ] Type B1 or pack ice orcas are smaller than type A. [ 4 ] It has a large white eye patch.
[76] [79] Competition between orcas and white sharks is probable in regions where their diets overlap. [80] The arrival of orcas in an area can cause white sharks to flee and forage elsewhere. [81] [82] Orcas appear to target the liver of sharks. [76] [79] In one case a single orca was observed killing and eating a great white shark on its own ...
[3] [4] The great white shark (bottom) is one of the top marine predators; however, the orca (top) is known to prey upon them. Thus, great white sharks are not true apex predators. Despite coexisting the majority of the time, confrontations may occur in stressed environments when both species compete for limited resources.
Orcas in the Gulf of California appear to have gained special skills to hunt and kill the world’s largest fish, according to a new study.. Whale sharks, which grow up to 18m long, are known to ...
Also known as "killer whales," orcas — the largest members of the dolphin or "toothed whales" family, a suborder of cetaceans — are the only known marine predators of white sharks, another ...
Scientists saw a male orca kill a juvenile great white shark within minutes last year. The hunting behavior could be a sign of a wider shift in the marine ecosystem.
Orcas (Orcinus orca) have the second largest known brain mass of any extant animal. (5.4-6.8 kg). [6] Bottlenose dolphins (Tursiops truncatus) have an absolute brain mass of 1,500–1,700 grams. This is slightly greater than that of humans (1,300–1,400 grams) and about four times that of chimpanzees (400 grams). [7]
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