Young Frilled Sharks Are Born Into a World of Crushing Pressure

Newborns enter an environment lethal to most surface life.

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Litter sizes are modest compared to many coastal shark species.

Frilled shark pups are born live at depths where pressure may exceed 100 atmospheres. From birth, they must withstand extreme compression, low temperatures, and complete darkness.

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There is no shallow nursery phase documented for the species. Immediate exposure to abyssal conditions demands fully developed physiological resilience.

This abrupt introduction to the deep sea reflects an evolutionary strategy where survival depends on long gestation rather than postnatal protection. The abyss offers no gradual acclimatization.

Source

Natural History Museum

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