A hard shelled sea creature is the barnacle.
Platypus eggs are soft and leathery, rather than hard-shelled.
Sounds like a reptile to me.
The Cambrian period, which lasted from approximately 541 million years ago to 485 million years ago, is known for the sudden appearance of diverse hard-shelled fossils. This period marked the rapid diversification of marine life and the emergence of many new forms of life in Earth's oceans.
Hard fruit is nothing but the fruits which are all having the relatively long shelf life and ships a bit more easily compared to soft fruit, whereas, soft fruit is nothing but, which has short shelf life comparing to hard fruit.
Nuts are seeds with a hard shell that come from various types of trees. They are a good source of healthy fats, protein, and fiber, and are often consumed as snacks or used in cooking and baking. Common examples of nuts include almonds, walnuts, and cashews.
coral
There are many such hard shelled insects, mostly beetles.
Platypus eggs are not hard-shelled, like birds' eggs. They are soft-shelled and leathery.
no
bugs
yes, hard shelled tacos are the traditional mexican ones, soft shelled tacos are technically not even tacos but burritos or enchiladas instead
Nuts are a hard shelled fruit.
A weevil is a black and brown spotted hard shelled bug. Weevils are well-known for being damaging to an array of crops.
There are two main types of snake eggs: hard-shelled eggs and soft-shelled eggs. Hard-shelled eggs have a tough outer layer, while soft-shelled eggs have a more flexible outer layer. Both types of eggs are laid by female snakes and are incubated until they hatch.
I'm not sure there is a prefix for hard, but "dur" is the root for "to harden"
crab dah
tortiose