Story perspectives

Rare Orange Nurse Shark Discovered in Costa Rica

9/7/2025

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Summary

Story summary

A nurse shark with bright orange coloration was found off Costa Rica, displaying a rare condition called xanthism.
This marks the first documented case of xanthism in nurse sharks, which usually range from yellow to gray-brown.
Measuring 6.6 feet, the shark was caught in August 2024 and released after being photographed.
Marine biologist Daniel Arauz Naranjo notes the shark may also exhibit albinism, contributing to its unique appearance.
Researchers are exploring genetic and environmental factors influencing this unusual pigmentation and its impact on survival.

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Story summary

A nurse shark with bright orange coloration was found off Costa Rica, displaying a rare condition called xanthism.
This marks the first documented case of xanthism in nurse sharks, which usually range from yellow to gray-brown.
Measuring 6.6 feet, the shark was caught in August 2024 and released after being photographed.
Marine biologist Daniel Arauz Naranjo notes the shark may also exhibit albinism, contributing to its unique appearance.
Researchers are exploring genetic and environmental factors influencing this unusual pigmentation and its impact on survival.