Can octopus remember faces?

Intelligence. The octopus has a complex nervous system and is capable of learning and demonstrating memory. In both laboratory and ocean settings, the octopus is known to recognize faces.

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Consequently, is squidward a squid or an octopus?

Despite his name, Squidward Q. Tentacles-the grouchy neighbor of SpongeBob SquarePants in Nickelodeon's long-running cartoon-isn't a squid. He's an octopus. (Allegedly, creator Stephen Hillenburg named him Squidward because "Octoward" sounded too weird.) Who would win in a fight octopus or squid? The fight goes to the giant squid. But, take the largest sample and mass and size goes to the octopus, add venom to the mix and size, strength, venom all go in favor to the giant octopus.

Regarding this, are squids intelligent?

It is believed that squids are slightly less intelligent than octopuses and cuttlefish; however, various species of squid are much more social and display greater social communications, etc, leading to some researchers concluding that squids are on par with dogs in terms of intelligence. And another question, what animal has no brain? There is one organism that has no brain or nervous tissue of any kind: the sponge. Sponges are simple animals, surviving on the sea floor by taking nutrients into their porous bodies.

Do giraffes have 3 hearts?

Three hearts, to be exact. There is a systemic (main) heart. Two lesser hearts pump blood to the gills where waste is discarded and oxygen is received. They work like the right side of the human heart. Which animal can survive without heart? The animals that do not have a heart include jellyfish, flatworms, corals & polyps, starfish, sea anemone, sponges, sea cucumbers and sea lilies. The Jellyfish is the biggest animal without a heart. It is a simple and primitive creature. It has no heart because it has no blood flowing around inside its body.