Young Sixgill Sharks Are Born Nearly Two Feet Long in Deep Water

Newborns enter the ocean already the length of a toddler’s leg.

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🤯 Did You Know (click to read)

Sixgill sharks are ovoviviparous, meaning embryos develop inside eggs within the mother’s body.

Sixgill shark pups measure roughly two feet at birth, far larger than many newborn fish species. They are born fully formed and capable of independent survival in deep habitats.

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💥 Impact (click to read)

Being born at substantial size reduces vulnerability to predators in environments where hiding space is limited and darkness is constant.

A species that releases dozens of sizable, self-sufficient predators into crushing depths at once demonstrates how reproduction in the abyss favors scale from the very first breathless moment.

Source

Florida Museum of Natural History

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