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Rare Bi-Colored Crayfish Discovered in Ohio River

10/15/2025

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Summary

Story summary

A rare bi-colored crayfish, named Chris, was discovered by Sean Williams' biology class in the Chagrin River, Cleveland, Ohio.
The crayfish exhibits a unique half-brown, half-orange coloration, a mutation seen in only about ten historical cases.
Experts believe the coloration may result from a developmental anomaly or a cell division error, with no evidence linking it to environmental factors.
Williams and assistant professor Zackary Graham plan to investigate this further in a research paper.
Other unusual animal sightings in Ohio include jellyfish in Lake Erie and a pregnant fisher.

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Story summary

A rare bi-colored crayfish, named Chris, was discovered by Sean Williams' biology class in the Chagrin River, Cleveland, Ohio.
The crayfish exhibits a unique half-brown, half-orange coloration, a mutation seen in only about ten historical cases.
Experts believe the coloration may result from a developmental anomaly or a cell division error, with no evidence linking it to environmental factors.
Williams and assistant professor Zackary Graham plan to investigate this further in a research paper.
Other unusual animal sightings in Ohio include jellyfish in Lake Erie and a pregnant fisher.