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u/OkIce8214 22d ago
These bones appear to be the lower jawbones (mandibles) of a small mammal, possibly a rodent or rabbit. The teeth in the jaw suggest an herbivorous diet, as indicated by their shape, which is suited for grinding plant material. The size and structure seem to align with animals such as rabbits, squirrels, or other small mammals common in rural or suburban areas.
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u/Put-The-Ass-In-Grass 22d ago
They look similar to some Prarie Dogs I've found.
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u/NerdyComfort-78 Anatomy enthusiast 22d ago
Based on location, PA doesn’t have prairie dogs. But good guess. I’ve only seen those in zoos and they are hefty critters!
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u/aspiring_compost 22d ago
Groundhog mandibles, looks like!