# Iris patterns offer a noninvasive way to recognize individual Amazonian treefrogs

- Source: Phys.org
- Published: 2026-10-23T08:00:01+00:00
- Category: Science
- Original: https://phys.org/news/2026-10-iris-patterns-noninvasive-individual-amazonian.html
- Canonical: https://groundlevelnews.com/story/iris-patterns-offer-a-noninvasive-way-to-recognize-individual-amazonia-9d72ce/

Identifying individual animals in the wild has long meant tagging, branding or clipping. For amphibians, the standard approach has often been toe-clipping, a procedure that can affect survival, physiology and behavior. A new study suggests that, for at least one species of treefrog, nature has already provided a more humane solution: the eyes.

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