The elusive giant squid is one of the world's largest animals, reaching a length of up to 60 feet. Very little is known about these mysterious animals because none have been seen alive in the wild. These animals are carnivores, and will eat just about anything they can catch.
The Thorny-back Cowfish (Lactoria fornasini) is a widespread tropical indo pacific species that is found along the east Australian coast as far south as Sydney. source: www.scuba-equipment-usa.com https://www.facebook.com/144196109068278/photos/a.168988406589048.1073741825.144196109068278/266517246836163/?type=3&theater
The wonders of evolution: Tongue-eating louse (Cymothoa exigua). This parasite enters the fish's mouth (Lutjanus sp.), clings to the tongue's base and extracts all the blood until the tongue atrophies.. Then it replaces the fish's tongue by attaching its own body to the muscles of the tongue stub, and starts to feed on what the host eats; the fish can live normally, and there are even studies around the benefits that he could receive from this parasite. There are no risks to humans.
PYURA CHILENSIS - the living, bleeding rock - is an invertebrate sea animal that resembles a mass of organs inside a rock. They often live in dense aggregations of population in the intertidal and subtidal coast of Chile and Peru. Similar in appearance to a marine rock structure, it is a filter feeder and eats by sucking in water rich in organic matter and filtering out microorganisms.