New research reveals evidence of colossal octopuses that lived during the Late Cretaceous period, growing up to 62 feet long and competing with dinosaurs as apex predators. The discovery highlights the advanced intelligence and predatory capabilities of these ancient invertebrates.
New research has unveiled evidence of colossal, 'kraken-like' octopuses that dominated the ancient oceans during the Late Cretaceous period, approximately 72 to 100 million years ago.
These invertebrates reached staggering lengths of up to 62 feet (19 meters), rivaling the size of large marine reptiles like mosasaurs and even sperm whales. The discovery challenges previous understandings of marine ecosystems, demonstrating that octopuses evolved to become apex predators capable of competing with and potentially preying upon dinosaurs. What sets these ancient octopuses apart is their soft-bodied nature, a departure from the protective shells typically seen in other invertebrates.
This adaptation likely granted them exceptional mobility, advanced vision, and heightened intelligence. The findings stem from a re-examination of 15 fossilized jaws belonging to ancient octopus relatives, leading to the identification of two new species: Nanaimoteuthis haggarti and Nanaimoteuthis jeletzkyi. Nanaimoteuthis haggarti, the larger of the two, exhibited significant wear patterns on its jaws, indicating a diet of hard-shelled prey and bone-crushing capabilities.
The extensive wear suggests a dynamic crushing of hard skeletons, with the jaws becoming blunted and rounded over time. Researchers also noted asymmetrical wear, suggesting a preferred side for chewing, a trait linked to complex brain function and cognition. Nanaimoteuthis jeletzkyi, while smaller at around 26 feet (8 meters) long, was also identified as an active predator.
These discoveries demonstrate that these octopuses were not simply prey items but actively shaped marine ecosystems, occupying roles traditionally attributed to large vertebrates like sharks. The implications of this research extend beyond simply identifying a new giant species. It suggests that octopuses evolved sophisticated predatory strategies and intelligence much earlier than previously thought. The wear patterns on the fossilized jaws reveal a meticulous dismantling of prey, utilizing strong beaks and flexible arms to seize and process food.
This level of predatory behavior, coupled with the evidence of advanced cognition, indicates that these ancient octopuses possessed a remarkable capacity for problem-solving and adaptation. Furthermore, recent studies suggest that modern octopuses exhibit sleep patterns similar to REM sleep in mammals, accompanied by dynamic skin patterns, hinting at the possibility of dreaming. This adds another layer of complexity to our understanding of octopus intelligence and behavior, suggesting a lineage of sophisticated cephalopods stretching back millions of years.
The discovery also builds upon previous findings of ancient octopus-like predators, such as the oldest known ancestor of the vampire squid, which possessed specialized suckers for active hunting, contrasting with the modern vampire squid's passive feeding habits
Ancient Octopus Fossil Discovery Late Cretaceous Marine Reptiles Cephalopod Paleontology Apex Predator Nanaimoteuthis Haggarti Nanaimoteuthis Jeletzkyi
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65-foot-long octopuses ruled ancient oceansAndrew Paul is Popular Science's staff writer focused primarily on tech, AI, physics, and culture news. He was previously a regular contributor to The A.V. Club and Input, and has been featured by Rolling Stone, Fangoria, GQ, Slate, NBC, McSweeney's Internet Tendency, and elsewhere. He lives outside Indianapolis.
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