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On April 25, 1977, the Japanese trawler Zuiyō Maru, fishing east of Christchurch, New Zealand, caught a strange, unknown creature in the trawl.The crew was convinced it was an unidentified animal, [4] but despite the potential biological significance of the curious discovery, the captain, Akira Tanaka, decided to dump the carcass into the ocean again so not to risk spoiling the fish caught.
The monstrous predator — which measured as long as a great white shark — belongs to a ... fossilized remains in southwestern Japan in 2006. ... 328 tentacles found suctioned to rock in Japan.
Otodontidae is an extinct family of sharks belonging to the order Lamniformes.Its members have been described as megatoothed sharks. [1] [2] They lived from the Early Cretaceous to the Pliocene, and included genera such as Otodus, including the giant megalodon. [3]
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.
Megalodon: The Monster Shark Lives is a 2013 film that aired on the Discovery Channel about the potential survival of the prehistoric shark. Purported to be a documentary, the story revolves around numerous videos, "photographs", and firsthand encounters with a megalodon and an ensuing investigation that points to the involvement of the prehistoric species, despite the long-held belief of its ...
The outline of the body, which revealed the shark’s shape and fin location, also provides evidence that the prehistoric fish was not just a bottom-dweller as previously believed, but instead, a ...
R. bracheri from the Early Miocene was one of the most widespread species, with fossil teeth known from the European Paratethys and from Japan. The last records of Rolfodon are indeterminate teeth from the Early Pliocene of Japan. [2] R. goliath, from the Late Campanian of Angola's southern Benguela Basin, could grow to very large sizes. [6]
The sharks were about 50 feet long, experts say.