X-Factor Longevity: Pacific Sleeper Sharks May Outlive a Human Lifetime

This deep-sea giant may patrol oceans for over a century.

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Longevity in sharks is often linked to slow growth and late reproductive maturity.

Growth studies of deep-sea sleeper sharks indicate exceptionally slow maturation and long lifespans, with estimates suggesting individuals can live for many decades and potentially beyond 100 years.

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💥 Impact (click to read)

Reaching bus-length proportions in cold, high-pressure habitats requires sustained survival over extraordinary time spans, meaning some living sharks could predate major 20th-century global events.

Such longevity in a top predator alters population dynamics, because each individual represents a century-scale ecological presence in deep Pacific and Arctic ecosystems.

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IUCN Red List

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