These sea creatures may have been some of the fiercest predators ...

Some octopuses that lived over 72 million years ago were as long as whales. These huge predators may have been the largest invertebrates ever.

Rare fossil finds show colossal octopuses were among the top ocean predators during the Cretaceous Period, according to a new study.

Giant, intelligent octopuses may have once ruled the ancient seas. Modern octopuses are known for their intelligence and ...

Somewhere between 100 and 72 million years ago, while mosasaurs and plesiosaurs dominated the world’s oceans, something else ...

Giant octopuses may have ruled the oceans 100 million years ago, according to fossil evidence.

New analyses of fossilized jaws reveal that massive, kraken-like octopuses once hunted alongside other marine predators.

‘Kraken’ fossils show enormous, intelligent octopuses were top predators in Cretaceous seas Fossil jaws from colossal octopuses place them at the top of a prehistoric marine food chain ...

An incredible underwater encounter goes viral after a diver gets unexpectedly close to not one, but two curious octopuses. Their strange intelligence and playful reactions create a mesmerizing moment ...

Just like vertebrates, cephalopods — such as octopuses and squid — have elaborate brains. Neuroscientists are flocking to them for insights into how intelligence evolved.

Octopuses have often been thought to prowl the seafloor solo using camouflage. But a new study suggests that some have surprisingly rich social lives. A new study found that some members of an octopus ...