Why do scientists think these 65-foot octopuses were the real rulers of ancient oceans before sharks took over?

Giant octopuses once ruled the ancient seas. These massive predators, some reaching 20 meters, dominated the ocean's food chain. Fossilized jaws reveal their intense biting and aggressive hunting of tough prey. This discovery changes our understanding of prehistoric marine life, showing invertebrates could be apex predators. Early octopuses possessed intelligence similar to modern species.

Why do scientists think these 65-foot octopuses were the real rulers of ancient oceans before sharks took over?
Giant octopuses once ruled the ancient seas. These massive predators, some reaching 20 meters, dominated the ocean's food chain. Fossilized jaws reveal their intense biting and aggressive hunting of tough prey. This discovery changes our understanding of prehistoric marine life, showing invertebrates could be apex predators. Early octopuses possessed intelligence similar to modern species.