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The Greenland shark has the longest known lifespan of all vertebrate species. [41] It is estimated that the species has a lifespan of at least 272 years, with the oldest individual estimated to be 392 ± 120 years of age. Estimates of age were made using radiocarbon dating of crystals within the lenses of their eyes. [10]
Fossil shark tooth (size over 9 cm or 3.5 inches) with crown, shoulder, root and root lobe A collection of Cretaceous shark teeth. The oldest total-group chondrichthyans, known as acanthodians or "spiny sharks", appeared during the Early Silurian, around 439 million years ago. [13]
Galeocerdo is a genus of ground shark.Only a single species, G. cuvier, the tiger shark, is extant. [1] The earliest fossils date back to the early Eocene epoch, (), around 56–47.8 Million years ago. [2]
The oldest living spider, named Number 16 by researchers, was a 43-year-old female Gaius villosus armored trapdoor spider, at the North Bungulla Reserve, Tammin, Western Australia. [ 137 ] Debby , the polar bear, an inhabitant of the Assiniboine Park Zoo in Winnipeg, Canada , was the oldest polar bear and third-oldest bear species on record ...
Deep Blue is a female great white shark that is estimated to be 6.1 m (20 ft) long or larger and is now sixty years old. She is believed to be one of the largest ever recorded in history. The shark was first spotted in Mexico by researcher Mauricio Hoyos Padilla. Deep Blue was featured on the Discovery Channel's Shark Week.
Cretoxyrhina mantelli was a large shark that lived about 100 to 82 million years ago, during the mid Cretaceous period. It is commonly known as the Ginsu Shark. This shark was first identified by a famous Swiss Naturalist, Louis Agassiz in 1843, as Cretoxyhrina mantelli. However, the most complete specimen of this shark was discovered in 1890 ...
The great white shark is more closely related to the mako sharks (Isurus spp.), with a common ancestor around 4 Mya. [26] [27] Proponents of the former model, wherein megalodon and the great white shark are more closely related, argue that the differences between their dentition are minute and obscure. [28]: 23–25
This shark was estimated to be more than 6.9 m (23 ft) long by Peter Resiley, [67] [73] and has been designated as KANGA. [72] Another great white shark was caught in Malta by Alfredo Cutajar on 16 April 1987. This shark was also estimated to be around 7.13 m (23.4 ft) long by John Abela and has been designated as MALTA.