Female Greenland sharks do not become sexually mature until they are roughly 150 years old, making them the longest-lived vertebrates ever documented. Radiocarbon dating of eye-lens nuclei from 28 ...

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By cannibalizing their siblings in the womb or avoiding meat-eating pliosaurs, fearsome carnivores like the megalodon ...

"Shark Week," which kicks off this week, has captivated audiences for decades with stories of these powerful ocean predators.