10 Animals That Lay Eggs

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Birds

The size, shape, color, and number of eggs can vary greatly among different bird species.

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Reptiles:

Reptile eggs typically have a leathery or hard shell to protect the developing embryo.

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Amphibians

Most amphibians lay eggs, which are usually laid in water or moist environments to prevent them from drying out.

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Fish:

Fish eggs are fertilized externally in most cases and may be deposited in nests or released into the water.

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Insects:

Insect eggs can vary greatly in size, shape, and appearance, depending on the species.

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Arachnids

Spider eggs are typically laid in silk egg sacs, which provide protection for the developing embryos.

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Mollusks

Mollusk eggs may be laid in gelatinous masses or deposited individually, depending on the species.

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Echinoderms:

Some echinoderms, such as sea stars and sea urchins, reproduce by laying eggs.

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Crustaceans:

Crustacean eggs are often carried by the female until they hatch or attached to a substrate in the water.

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Platypus and Echidna:

They are both monotremes, a group of mammals that also includes several species of echidna.

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