A rare orange shark with striking white eyes has been discovered off the coast of Costa Rica, near Tortuguero National Park, in what scientists are calling a unique marine biology discovery. This is the only known specimen of its kind ever recorded.
Why This Orange Shark Is So Rare
Researchers say the shark’s unusual bright orange coloration is caused by a rare condition known as xanthochromism. This occurs when darker pigments in the skin are lost, leaving behind vibrant yellow or orange tones.
What makes the find even more extraordinary is that the shark also has white eyes, a feature linked to albinism, a separate genetic condition caused by the absence or low production of melanin. Albinism typically affects the color of skin, hair, or eyes, resulting in a pale or white appearance.

First-Ever Case Recorded
The discovery, published in Marine Biology, marks the first time a shark with this coloration has been documented anywhere in the world. The combination of xanthochromism and albinism traits in a single shark is considered extremely rare, making the specimen scientifically invaluable.
Why It Matters
Marine biologists emphasize that this unusual shark could help researchers better understand the genetic and biological factors that influence coloration in marine species. Such insights may also shed light on evolutionary adaptations and the survival of rare traits in ocean ecosystems.
Key Facts at a Glance
- Found during a fishing trip near Tortuguero National Park, Costa Rica
- Unique bright orange color linked to xanthochromism
- White eyes suggest possible albinism
- First recorded case of its kind worldwide
- Discovery published in the journal Marine Biology
This remarkable find is already making waves in the global scientific community—and could change how researchers view color mutations in sharks and other marine life.
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