It depends on the age of the alligator egg.
Alligators lay hard-shelled, almost porcelain like eggs. However, underneath the hard exterior, of the alligator egg shell, is a leathery, and quite soft, inner shell layer. Much thicker, more substantial and leathery than the inner layer inside a bird's egg.
As the alligator in the egg develops the outer hard-shell slowly thins as it is absorbed by the growing alligator. By the time they're born, their eggs can look almost leathery because most of the outer layer has gone, revealing the softer inner layer underneath. The softer inner layer is particularly visible as the alligator pushes out of the egg as it finally hatches.
Hard
Soft
Platypus eggs are soft and leathery, rather than hard-shelled.
simple when the baby bird is growing it needs some protection but the egg still needs to be soft for the baby bird to brake when its grown
Well, a lot of things; like, a tiger, lion, bird, egg....
you boil it in boiling water
The two main differences are (a) snake eggs are soft-shelled, instead of being hard like a hen's egg, and (b) snake eggs expand slightly with the developing embyo - bird eggs are a fixed size.
Frozen, hard boiled is like soft rubber
They have a soft shell - which is porous to allow oxygen and moisture to penetrate into the developing embryo.
The egg of a platypus is leathery. It is not hard-shelled like a bird's egg.
A hard boiled egg is cooked until solid all the way through, a normal 'soft' boiled egg the centre yolk will still be runny, To test the egg you need to do is spin the egg on a flat surface, if the egg is soft boiled it will wobble because part of the egg is still liquid, if it is hard boiled it will spin on end, because the contents are solid.
Turtle eggs (and tortoise eggs) can be either hard or soft-shelled, depending on the species.
The primary function - is to contain the developing embryo and its nutritional yolk-sac until the foetus is ready to emerge. That applies whether it's a hard-shelled egg like a bird, or a soft-shell like a reptile.
Snake eggs are soft not hard.It is as soft as leather.