Mollusks

Mollusks are an amazingly diverse array of often quite beautiful animals. Most of them have shells: snails have one shell, clams have two shells, and chitons have eight shells. Some mollusks however, lost their shells completely, like some snails, but also like squid and octopi. The giant squid is the largest at 20 meters + (60 feet+)

KNOWN SPECIES: Approximately 70,000; 200,000 estimated

SIZE RANGE: 1 millimeter (0.04in) to 20+ meters (60+ feet)

6.5% of living things are Mollusks!!

WHERE THEY LIVE: In oceans, fresh waters, and in moist land areas

CHARACTERISTICS: animals without a backbone; most have shells and a hard-toothed feeding structure called a radula

ECOLOGICAL ROLES AND HUMAN USES: Herbivores, predators, scavengers, filter feeders • Some are keystone species (exerting a disproportionate effect on their ecosystem's structure through their predation) • Help purify water • Used by humans as food, for shells, as research subjects, and as a source of medicines

Source: American Museum Of Natural History

Limpets & Chitons

Limpets, Chitons, & Barnacles

© Photo By: Tim McGuinness

No Bones Zone

A Chiton

© Photo By: Tim McGuinness

Clams

Clams Are Mollusks

Lobsters & Sea Stars Eat Clams

Giant Clams

© Photo By: Tim McGuinness

Giant Clams Upper Lobby Coral Tank

© Photo By: Tim McGuinness

Bays
No Bones Zone
Lobby
Live Coral

Cuttlefish (Cephalopods)

Cuttlefish Eye

© Photo By: Florida Aquarium

Cuttlefish

They Look Like A Living Sock Puppet

© Photo By: Tim McGuinness

Squid (Cephalopods)

No Longer On Display

They Look Like A Living Sock Puppet

© Photo By: Florida Aquarium

Octopus (Cephalopods)

Female Octopus

Octopus
Sea Hunt

Pacific Red Octopus

Nautilus (Cephalopods)

Nautilus

Sea Hunt

Nautilus - Truly Living Fossils

Thanks To Our Contributors On This Page: Tim McGuinness • Mike McCarthy • Florida Aquarium

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