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Many reptiles lay eggs with leathery shells, for example Pythons and other snakes, Crocodiles and Alligators.
Some lizards like crocodiles, Birds, possibly some dinosaurs, some turtles,
The ostrich lays hard shelled eggs. They are the largest of all eggs.
It is probably because of a mineral deficiency. To fix that, you can buy oyster shell that has been crushed to feed them. And, if you want to, you can, after they start laying…, rinse and bake the shell and crush them to feed to them so you do not have to keep buying shell.
One of them are crocadiles.
No, they do not. Since they are only shells, they are not alive. Depending on what lives within them, that creature may or may not lay eggs. Remember, shells are not alive, th…ey are like houses! You live in your house, but it is not alive. Same basic concept with sea shells!
A turtle or tortoise
Fish and amphibians lay eggs that do not have a shell. Land animals, including birds, reptiles, and turtles lay eggs that do have a hard shell.
No, they do not lay eggs.
This can happen, and if it happens often it means that the chicken's diet is incorrect. They need calcium in their diet in order to make the shell and this can be supplied by …giving them old (used) egg shells to peck at or a sand made out of lime stone.
Turtles, and some other reptiles, and also penguins.
Yes, they do, after they layed it, a few days later, the chicks inside it crack open the shell! Hope u find this helpful x
An amphibian most likely.