They can:
- shape shift into so many different forms and shapes.
- "invisibility", by instantanously changing colors & it's own skin texture, to match surrounds.
- can regrow entire body parts if cut off (like arms)
- have 9 brains (localized)
- and are ridiculous intelligent
One of the coolest things I've encountered at an aquarium was a sleeping octopus wildly shifting its colors. It seems truly alien to behold -- like it shouldn't be possible.
My googling after the fact says that who knows why they actually do it or what's going on, but, I really like the thought of them having little octopus dreams.
https://www.nationalgeographic.com/animals/article/spider-se...