anon 0x439 said in #2524 1mo ago:
Our last common ancestor with cephalopods dates back 600 million years. For reference, dinosaurs roamed Earth only 252–66 million years ago.
This ancestor was likely a small, flattened, worm-like creature with primitive eyes or light-sensitive patches. At the time, no organisms had made it onto land, and the largest animals were likely sponges and jellyfish. This evolutionary split is nearly twice as old as the one between mammals and birds. One path led to vertebrates, including us. The other led to invertebrates like mollusks, crabs, bees—and octopuses.
Cephalopods are a separate evolutionary experiment in complex cognition. Our last common ancestor was so primitive that we can say evolution built intelligence twice.
Octopuses display mischievous, problem-solving behavior. Aristotle noted it. Divers experience it. In experiments, octopuses open jars, navigate mazes, and escape enclosures in ways that suggest true problem-solving ability.
Their nervous system is unique—60% of their neurons are in their arms. Their limbs act semi-autonomously, exploring the environment until the brain "takes over" and directs them more consciously. This mix of centralized and decentralized control makes them unlike any other intelligent creature.
Octopuses are, in many ways, the closest thing we have to an alien mind on this planet.
Medawar and Williams effects explain why evolution doesn’t favor longevity:
Medawar’s Hypothesis: Natural selection weakens with age. Since most organisms don’t survive long in nature, harmful late-life mutations accumulate, leading to rapid aging.
Williams’ Hypothesis: Traits that boost early survival and reproduction persist—even if they cause rapid decline later (antagonistic pleiotropy).
Octopuses take this to an extreme: they reproduce once and then self-destruct. Their optic gland triggers a hormonal cascade leading to starvation, tissue breakdown, and even self-mutilation—a programmed death to clear space for offspring.
Most intelligent animals—elephants, primates, corvids—live long enough to learn, adapt, and even pass on knowledge. Octopuses don’t. Their intelligence emerges in a vacuum, with no time to accumulate experience or culture.
If we selectively breed octopuses to bypass programmed senescence, we could:
Observe whether extended life amplifies intelligence
Improve our understanding of complex cognition
Give these remarkable creatures the dignity they deserve
This ancestor was likely a small, flattened, worm-like creature with primitive eyes or light-sensitive patches. At the time, no organisms had made it onto land, and the largest animals were likely sponges and jellyfish. This evolutionary split is nearly twice as old as the one between mammals and birds. One path led to vertebrates, including us. The other led to invertebrates like mollusks, crabs, bees—and octopuses.
Cephalopods are a separate evolutionary experiment in complex cognition. Our last common ancestor was so primitive that we can say evolution built intelligence twice.
Octopuses display mischievous, problem-solving behavior. Aristotle noted it. Divers experience it. In experiments, octopuses open jars, navigate mazes, and escape enclosures in ways that suggest true problem-solving ability.
Their nervous system is unique—60% of their neurons are in their arms. Their limbs act semi-autonomously, exploring the environment until the brain "takes over" and directs them more consciously. This mix of centralized and decentralized control makes them unlike any other intelligent creature.
Octopuses are, in many ways, the closest thing we have to an alien mind on this planet.
Medawar and Williams effects explain why evolution doesn’t favor longevity:
Medawar’s Hypothesis: Natural selection weakens with age. Since most organisms don’t survive long in nature, harmful late-life mutations accumulate, leading to rapid aging.
Williams’ Hypothesis: Traits that boost early survival and reproduction persist—even if they cause rapid decline later (antagonistic pleiotropy).
Octopuses take this to an extreme: they reproduce once and then self-destruct. Their optic gland triggers a hormonal cascade leading to starvation, tissue breakdown, and even self-mutilation—a programmed death to clear space for offspring.
Most intelligent animals—elephants, primates, corvids—live long enough to learn, adapt, and even pass on knowledge. Octopuses don’t. Their intelligence emerges in a vacuum, with no time to accumulate experience or culture.
If we selectively breed octopuses to bypass programmed senescence, we could:
Observe whether extended life amplifies intelligence
Improve our understanding of complex cognition
Give these remarkable creatures the dignity they deserve
referenced by: >>2526
Our last common ance