Most reptiles lay eggs with leathery shells, but a few types bear live young.

It is a nut, and contains a single seed (rarely two seeds), enclosed in a tough, leathery shell.

Eggs laid by snakes generally have leathery shells which often adhere to one another.

It is covered with a leathery shell or coat of mail, like a cloak, attached along the spine.

Stinking yolk oozed across the dark stone as he broke the thick, leathery shells.

The round fruit is light yellow to red in colour, around 2-4 cm in size, and has a leathery shell.

The female makes 4-12 eggs, 42-47 mm long and 18-22 mm wide with a leathery shell.

The patches of skin had been tanned to a hard leathery shell.

Baby snakes generally hatch from eggs with tough, leathery shells.

Unlike frogs, sea turtle eggs have tough, leathery shells which allow them to survive on land without drying out.