Mollusca
Shelled gastropods found both on land and in the sea, coming in varieties such as cone, tower, and moon
What are snails?
Predatory fishes characterized by cartilaginous skeletons, a streamlined shape, and many, many rows of teeth
What are sharks?
Many-armed marine invertebrates known for their ability to regenerate lost limbs
What are sea stars?
These ten-limbed crustaceans have large claws, a carapace of chitin and calcium carbonate and long, muscular tails
What are lobsters?
These gelatinous swimming invertebrates possess stinging tentacles, no central nervous system, and a complex multi-stage life cycle
What are sea jellies?
Eight-armed, two-tentacled predatory cephalopods that swim with high-speed jet propulsion
What are squids?
Flightless, aquatic predators highly adapted for high-speed agile swimming, notable for their countershading
What are penguins?
Spiny, spherical marine invertebrates known for their lantern-like five-pointed mouths
What are sea urchins?
Teeny-tiny floating crustaceans that are an important food source for baleen whales
What are krill?
Named for a type of flower due to their appearance, these tentacled cnidarians make a great home for many species of clownfish
What are sea anemones?
Laterally compressed aquatic mollusks that live in a hinged shell
What are bivalves? (Clams, mussels, oysters, scallops, etc. acceptable)
Vulnerable marine reptiles whose hatchlings often have to make a perilous trek from the beach to the sea
What are sea turtles?
Flat, burrowing echinoderms known for their coin-like tests, which you've likely found washed up on the beach
What are sand dollars?
Sessile, filter-feeding crustaceans, you'd be forgiven for not knowing these animals found stuck to whales and ships are close relatives of crabs
What are barnacles?
Slow-growing and reef-forming, many of these diverse cnidarians get their array of colors from symbiotic algae called zooxanthellae
What are corals?
Colorful, often poisonous gastropods, whose flamboyant and striking appearance often lends them nicknames such as 'clowns' or 'dragons'
What are nudibranchs (sea slugs)?
Specialized arctic predators famed for a single elongated canine tooth in males
What are narwhals?
Soft, squishy invertebrates who scavenge for food in benthic marine sediments, some of whom can literally spill their guts as a defense mechanism
What are sea cucumbers?
Named for their shape, these ancient marine arthropods, despite their name, are more closely related to arachnids than to crustaceans
What are horseshoe crabs?
Gelatinous, often deadly, always excruciatingly painful, these cnidarians are named for the cubelike shape of their bells
What are box jellies?
Ancient, shelled cephalopods that emerged in the late Cambrian, with only one surviving family
What are nautiloids?
Large, slow-going, herbivores whose closest living relatives are the elephants
What are sirenians (manatees and dugongs?)
Looking more like plants than animals, these ancient echinoderms attach themselves to their substrate with a stalk and use feathery feeding arms to eat
What are crinoids (sea lilies)?
Found in an enormous variety of both sizes and environments, these crustaceans can be deep-sea giants or found in your backyard
What are isopods?
These cnidarians may look like one organism, but are actually communal superorganisms, some made of hundreds of small individuals, each specialized for different jobs
What are siphonophores?