no it is not
They have no shell but yes they are technically shellfish. If you have a shellfish allergy you can't eat octopus.
An octopus or squid
No. A lobster and crab is a crustacean. An octopus, squid and cuttlefish are mollusks.
* Octopus * Orca * Ostracod (freshwater crustacean) * Otter * Oyster
No because a crustacean has a exoskeleton and a mussel has a shell
a crab is a crustacean
No. A bird is not a crustacean.
crustacean is not a decomposer
crustacean
No, a frog is an amphibian, not a crustacean.
Crustacean Records was created in 1994.
Krill is in fact a type of crustacean. Whales are typically animals that consume large amounts of the crustacean krill.