The mystery of octopus

Imagine a creature that has three hearts, pumping blue blood through the vessels. Although it has an almost amorphous body resembling a bag of water, it can easily open a bottle. Even a baby-proofed one. It can feel light, and even taste on its skin. It has no ears, but it hears well, even in the infrared range. It can constantly change color and texture, becoming indistinguishable from the environment. Even though it doesn't identify colors at all, and sees the world in black and white. It's venomous and can be hostile. But at the same time, it's curious and even playful. On top of that, it's highly intelligent and can solve non-trivial problems. In addition to the main brain, it has eight smaller brains in different parts of the body. And these additional brains make their own decisions. Who is this monster? Does it come from Earth? Yes, you got that? Right. It's an octopus. And of course, it comes from our planet. Although some scientists entertain another idea, first things first. The mystery of the octopus.
We are certainly used to modern octopuses or octopi. Everyone has known these creatures since childhood. And this somewhat reduces our perceptual acuity.