What sea creatures are similar?

Answer 1

Many sea creatures share similarities, particularly among groups like fish, mollusks, and crustaceans. For instance, both octopuses and squids are cephalopods, exhibiting similar body structures and behaviors, such as being intelligent and capable of camouflage. Similarly, sharks and rays, both part of the elasmobranch group, have cartilaginous skeletons and similar reproductive methods. Additionally, many bony fish exhibit similarities in body shape and habitat preferences, adapting to their environments in comparable ways.