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Octopus facts
These eight-armed, blue-blooded animals are quite intelligent. Sad about their sex lives, though.
Octopuses may be so terrifyingly smart because they share humans' genes for intelligence
Genetic analysis of octopuses identified DNA sequences in their brains called transposons, which may help regulate learning.
Octopuses fling shells and sand at each other, and scientists caught their battles on video
Watch debris from the sea bottom fly, as octopuses hurl sand and other projectiles at their neighbors in an Australian bay.
Giant purpleblack flying squid photobombs crew investigating shipwreck
A team mapping the seafloor in the northern Red Sea unexpectedly spotted a purpleback flying squid near a previously unknown shipwreck.
Octopuses Are Surprisingly Social — and Confrontational, Scientists Find
A new study reveals that octopuses frequently communicate with each other in challenging displays that include posturing and changing color.
Octopus Gets Mental Workout with Hamster Ball
Octopuses are highly intelligent, and thanks to their amazing, neuron-filled tentacles, they can do humanlike tasks such as unscrewing jars and lids.
