Octopus might be the strangest animal on earth.
They can change the texture and color of their skin at will. And because they have no bones, they can squeeze through any hole large enough for their eyeballs to pass through.
The motion of their arms is so complex, each arm has its own brain. Plus there’s a ninth brain for centralized control.
Their blood doesn’t use iron-based hemoglobin to carry oxygen, it uses copper-based hemocyanin, which makes their blood blue instead of red.
Despite the fact that parents play no role in their upbringing (=no teaching in infancy), despite the fact that most species only live for two years (the longest-lived only last for about four years), they demonstrate both problem-solving and tool use (but not tool creation).
If there’s an animal that deserves to be the descendant of space aliens, ... it’s the octopus.
Tickets to the Earth Undersea Octopus Adventure (yes, YOU can live as an octopus for 3 years) are almost sold out. cheaper tickets 'be undersea grass' - - the 'meditation' adventure of the planet - are still readily available.