crab dah
A turttle.
Some lizards like crocodiles, Birds, possibly some dinosaurs, some turtles,
There are many such hard shelled insects, mostly beetles.
What exactly do you mean by "hard shelled?"
A hard shelled sea creature is the barnacle.
Mollusks are animals like snail squid clam cuttlefish lamp shell oyster, they are soft bodied and sometimes hard shelled animals.
Millions of years ago, possibly in the cretaceous period. No one is entirely sure.
Platypus eggs are not hard-shelled, like birds' eggs. They are soft-shelled and leathery.
Crustaceans are hard-shelled animals that normally live in the sea. Commonly known crustaceans would be crabs and lobsters.
no
invertabrates such as crabs, lobsters, and other shelfish have no backcones. also hard-shelled insects such as ants There are many animals with no backbone, so here are three: fish, crabs, and snails.
bugs