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Do cephalapods dream of aquatic sheep? Would this imply that dreams developed some 500 millions years ago or that the different trees of the animal kingdom bot
by SketchySeaBeast 6y ago
Do cephalapods dream of aquatic sheep?
Would this imply that dreams developed some 500 millions years ago or that the different trees of the animal kingdom both developed the ability?
- scythmic_waves 6y agoConvergent evolution [1] is a pretty fascinating phenomenon! Crazy to think it could happen for something as specific as a brain process like dreaming. Though I guess we all sleep so maybe it's not that crazy. [1] https://en.wikipedia.org/wiki/Convergent_evolution https://en.wikipedia.org/wiki/Convergent_evolution
- SketchySeaBeast 6y agoIt really is, especially considering how different the rest of the organism turned out to be.
- cultofmetatron 6y agonot only did they convergently develop an eye similar to ours. It lacks a major flaw that exists in the mammalian version. Theirs has no blind spot!
- tibbydudeza 6y agoWe have color vision thanks our 3 types of cone cells (RGB) while they only one type of cone cell so they see in black and white. Since they can change skin color to match their environment there must be a way they can "see" color. One theory says that their weirdly shaped pupils and brain make up for this deficiency by figuring out the wavelengths of the light in their environment by using chromatic aberration effect.
- xeeeeeeeeeeenu 6y ago>Would this imply that dreams developed some 500 millions years ago or that the different trees of the animal kingdom both developed the ability? Cephalopods have much, much more complex brains than the other mollusks (such as gastropods or bivalves), so the latter is more likely.
- unfunco 6y agoMany trees/plants have dimethyltryptamine in them, the human experience of taking that chemical is often described as being close to dream-like, I'm not sure if it's relevant though.