I've always thought shellfish were ancient, like they have been around since the dinosaurs or something.
I bet shellfish back then were much larger than they are now. T-rex was just a glorified reptile after all.
It sort of validates my theory because shellfish are part the crustacean family and they have been around for 8 millennia.
The sea is vast, so it's there are plenty undiscovered shell fish probably in the deep ocean.
shellfish are low on the food chain and eat a diet composed primarily of phytoplankton and zooplankton. Many varieties of shellfish, and crustaceans in particular, are actually closely related to insects and arachnids; crustaceans make up one of the main subphyla of the phylum Arthropoda. Molluscs include cephalopods (squids, octopuses, cuttlefish) and bivalves (clams, oysters), as well as gastropods (aquatic species such as whelks and winkles; land species such as snails and slugs).
Molluscs used as a food source by humans include
poet, and of the sheepskin-costume appropriate for much of what was surrounding him.
"I am no sheep, I am no dog, No Councillor, and no shellfish – I have remained a wolf, my heart And all my fangs are wolfish."
Section XIII takes the traveller to Paderborn. In the morning mist a crucifix appears. The ‘poor jewish cousin’ had even less good fortune than Heine, since the kindly Censor had at least held back from having him crucified – until now,