Scientists discovered an extinct species of giant octopus that reached lengths of 62 feet [1].

This discovery reshapes the understanding of ancient marine ecosystems by demonstrating that giant octopuses could hunt large marine reptiles and compete as apex predators [3].

The creature lived during the Late Cretaceous period [3], approximately 72 million to 100 million years ago [1]. Research teams in China led the discovery of the fossils, though additional jaw fossils were recovered in Japan and Canada [1]. These findings suggest the animals inhabited ancient global seas rather than a single localized region.

Evidence indicates the species was a dominant force in the ocean. By reaching such massive proportions, the octopus was capable of preying on creatures that would typically be considered top-tier predators in other marine environments [3]. This suggests a more complex food web in the Cretaceous era than previously recorded.

Researchers have identified two extinct finned octopus species through these findings [3]. The scale of the 62-foot specimen [1] marks a significant departure from known modern cephalopods, highlighting a period of extreme biological growth in the prehistoric ocean.

The fossils provide a rare glimpse into the evolution of the octopus. While most cephalopod soft tissues decompose quickly, the recovery of jaw fossils and other remains across three continents allows scientists to map the distribution, and dietary habits of the species [1].

Giant octopus species up to 62 feet long lived in Late Cretaceous seas

The existence of a 62-foot cephalopod challenges the traditional view of the Late Cretaceous ocean as a domain exclusively ruled by massive marine reptiles. It suggests that cephalopods reached a peak of evolutionary size and predatory capability that has not been seen in modern oceans, indicating that environmental conditions of the time supported vastly larger soft-bodied invertebrates.