Which animal is known as the ''giraffe of the sea''?

The animal that is known as the 'giraffe of the sea' is the Okapi.

Just kidding! Actually, it's the giraffe weevil. Sorry to mislead you there. The giraffe weevil (Trachelophorus giraffa) is a type of beetle found only in Madagascar. It gets its name from its incredibly long neck, which is longer in males than in females. The neck is used by the male to fight off rivals and also to attract females.

The real animal that is sometimes called the 'giraffe of the sea' is the sea giraffe, also known as the sea pen. The sea giraffe is actually a type of marine animal that belongs to the same family as jellyfish and corals. They are called sea giraffes because of their long, slender stalks which resemble the neck of a giraffe. These stalks can grow up to a meter in length and are used for a variety of purposes, including feeding, reproduction and defense.