Aquatic animal facts #1 Bigfin squid(the tan squid with long arms in the logo) was named that way because the arms and tentacles of early specimens were damaged, but their fins were not damaged. #2 Giant phantom jellyfish have no tentacles, they catch prey by wrapping them in their large flat feeding arms. #3 Swordfish have special heating cells near their eyes #4 Whale sharks are the largest fish alive #5 Helicoprion(extinct fish) was thought to not be a shark but a ratfish #6 Sea spiders have some of their organs in their legs #7 Canadian red urchins can live to 200 years old #8 Ophiosparte gigas is an active predator and other brittle stars in the Ophiuridae family are carnivourous. #9 Ocean sunfish are the largest bony fish alive. #10 Electric eels are not eels but are more closely related to catfish. #11 Leedsichthys was the largest ray finned fish to have lived. #12 Bristlemouths are one of the most abundant vertabrates. #13 Scyphozoa is the scientific name for jellyfish #14 Nautiluses have more than 90 tentacles.