In a discovery that has left scientists astonished, researchers have found the world’s first-ever frog with eyes located inside its mouth. The bizarre amphibian was discovered during a field study, and experts say this is the result of a rare genetic condition known as macromutation, which causes major physical changes during development.

According to scientists, this unusual placement of the eyes makes it difficult for the frog to see unless its mouth is open — meaning it literally has to “open wide” to look around. Despite the strange anatomy, the frog appears to have survived in the wild, suggesting that nature sometimes finds unexpected ways for creatures to adapt.

This unique case could help researchers better understand how major genetic mutations shape animal evolution. While minor genetic variations are common in nature, such an extreme transformation — like eyes forming inside the mouth — is almost unheard of.

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