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The orca's teeth are very strong, and its jaws exert a powerful grip; the upper teeth fall into the gaps between the lower teeth when the mouth is closed. The firm middle and back teeth hold prey in place, while the front teeth are inclined slightly forward and outward to protect them from powerful jerking movements.
An estimated 4.7–5.3 m (15–17 ft) female orca immobilized an estimated 3–4 m (9.8–13.1 ft) great white shark. [153] The orca held the shark upside down to induce tonic immobility and kept the shark still for fifteen minutes, causing it to suffocate. The orca then proceeded to eat the dead shark's liver.
The shark traps the plankton in these filaments and swallows from time to time in huge mouthfuls. Teeth in these species are comparatively small because they are not needed for feeding. [98] Other highly specialized feeders include cookiecutter sharks, which feed on flesh sliced out of other larger fish and marine mammals. Cookiecutter teeth ...
Comparative studies of the centrum radii and growth rings on the vertebrae of O. obliquus and the extant great white shark through X-rays have concluded that the sizes of the vertebrae at birth are similar, meaning that the offspring of both species would have the same size (between 1.1 and 1.6 m (3.6 and 5.2 ft) in length); they also revealed ...
Screenshot/DiscoveryIn the 34 years since Shark Week first launched, the Discovery network has shown footage of sharks jumping, sharks fighting, sharks migrating, ...
On June 13, 2022, an unidentified trainer was washing "paint and food chips" out of the mouth of the two-and-a-half-ton killer whale, Malia. The trainer was said to have broken the three foot rule and moved her right arm across the whale's mouth when the whale bit down and then "immediately" released the trainer.
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.
The megamouth shark (Megachasma pelagios) is a species of deepwater shark. Rarely seen by humans, it measures around 5.2 m (17 ft) long and is the smallest of the three extant filter-feeding sharks alongside the relatively larger whale shark and basking shark .