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They have a tough membrane but not a shell like a bird egg.
It lay eggs with shells in the sands
No they do not have soft shells
Yes. Penguins are birds, and birds reproduce by laying eggs with hard shells. This is different from the eggs of reptiles and monotremes, which have leathery shells.
Scallops are not born. They hatch from eggs. Their eggs don't have shells and neither do the newly hatched scallops.
tortoise
no
No
No, there are many different sorts of "eggs" that are covered with gel, mucus, or some other sort of covering. Frog eggs and fish eggs such as caviar are examples of eggs that do not have shells.
Land dwelling animal's eggs have shells (hard or soft) to keep them from drying out. Fish eggs don't need shells because being in water they won't dry out.
Well, the eggs have soft thick shells so if they drop the egg(s) they will bounce.
No, their eggs are soft. Caviar is fish eggs.