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Tuna do lay eggs (oviparous).

Not all fish lay eggs, those that don't, like some sharks, usually retain the eggs and they hatch inside the mother. This is called ovoviviparous.

Some sharks are viviparous, giving birth to live pups that did not hatch from an egg inside the mother. These sharks are able to obtain food from the mother and also by eating their weaker siblings.

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15y ago

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