Sixgill Sharks Have Been Documented Living More Than 70 Years

This deep-sea giant can outlive most large dog breeds by decades.

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🤯 Did You Know (click to read)

Deep-sea sharks are generally among the slowest-growing fish in marine ecosystems.

Age estimates based on growth modeling and vertebral analysis suggest sixgill sharks can live for several decades, with some individuals exceeding 70 years. Slow growth and late maturity characterize many deep-sea shark species.

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💥 Impact (click to read)

Longevity in cold, stable environments allows individuals to reproduce multiple times over extended lifespans, but it also means population turnover is extremely slow.

A predator that may patrol the same dark basins for generations experiences ocean change on a human timescale. When such long-lived giants decline, recovery can take longer than a human lifetime.

Source

IUCN Red List

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