Octopus: The Genius of the Ocean

Описание: An octopus is a
highly intelligent, soft-bodied marine mollusk known for its eight sucker-lined arms, bulbous head with large eyes, and incredible camouflage abilities, allowing it to change color and texture to blend in or communicate; they lack bones, enabling them to squeeze through tiny spaces, possess a hard beak, three hearts, and blue, copper-based blood, using jet propulsion and ink for escape while hunting prey like crabs and shrimp with remarkable problem-solving skills in diverse ocean habitats.
Key Characteristics:

Body & Arms: A sack-like body (mantle) with a head, two complex eyes, a central mouth with a hard beak, and eight muscular arms with suckers, not tentacles.
Intelligence: Among the smartest invertebrates, with complex brains and problem-solving abilities, capable of tool use and learning.
Camouflage: Masters of disguise, using specialized skin cells (chromatophores) to instantly change color, pattern, and even texture.
Anatomy: No bones, allowing extreme flexibility; three hearts (two for gills, one for body); blue blood due to copper (hemocyanin).
Movement: Jet propulsion via a siphon, crawling with arms, or swimming backward by expelling water.
Defense: Ink sacs for disorienting predators, camouflage, and ink clouds.
Diet: Carnivores (crabs, shrimp, fish) using their beak to crack shells.

Habitat & Behavior:

Found in all oceans, from reefs to deep seas, often solitary.
Use rock crevices and build dens, sometimes creating "fortresses".
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