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Q&A Viability of an upper-jaw-only beak?

Say we have an organism with the beak of a raptor (the bird type, not the dinosaur), but instead of a full beak, it only has a mandible on the upper jaw, while the lower jaw just has a jaw bone lik...

1 answer  ·  posted 8y ago by ArborianSerpent‭  ·  last activity 8y ago by ArborianSerpent‭