Their eggs are leathery so they can get out of their shells easily
I'm pretty sure it's reptiles in general snakes, turtles.
No. Turtles lay eggs. Only mammals have a placenta.
No, they are usually hard-shelled. Snakes eggs are leathery.
Reptiles, such as turtles, snakes, and lizards, produce eggs with a leathery shell. The leathery shell is flexible and allows the eggs to absorb moisture and exchange gases with the environment. Unlike reptiles, birds and some other groups of vertebrates produce eggs with a hard, calcified shell.
Yes; platypuses lay soft, leathery eggs rather than hard-shelled eggs.
amnionic eggs
They are called amniotic eggs.
Turtles usually lay there eggs in a hole in the sand the bay turtles hatch out and crawl to the sea. This is from wikipedia:(edited) Turtles lay eggs, like other reptiles, which are slightly soft and leathery. Large numbers of eggs are deposited in holes dug into mud or sand. They are then covered and left to incubate by themselves. When the turtles hatch, they squirm their way to the surface and head toward the water. There are no known species in which the mother cares for the young. Sea turtles lay their eggs on dry, sandy beaches. Immature sea turtles are not cared for by the adults.
Snapping turtle eggs are typically around 1-1.5 inches in length and are elliptical in shape. They are usually white or slightly pink in color and have a flexible, leathery shell.
leathery eggs, 40-60.
green with brown leathery shell
Platypus eggs are soft and leathery, rather than hard-shelled.