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Southern Leopard Frog vs. Northern Leopard Frog

The eardrum decides it: a pale spot in its centre means Southern, a plain eardrum means Northern. The spots on the back confirm it — ringed with pale borders on the Northern, plain-edged and fewer on the Southern — and the Southern’s snout is more pointed.

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Southern Leopard Frog

Lithobates sphenocephalus

Northern Leopard Frog

Lithobates pipiens
Southern Leopard Frog vs. Northern Leopard Frog: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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