Skip to main content - Rats, Mice, and Relatives I: Voles and Lemmings (Arvicolinae)
- Rats, Mice, and Relatives II: Hamsters (Cricetinae)
- Rats, Mice, and Relatives III: Old World Rats and Mice (Murinae)
- Rats, Mice, and Relatives IV: South American Rats and Mice (Sigmodontinae)
- Rats, Mice, and Relatives V: All Other Rats, Mice, and Relatives
- Ravaʾ
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- Rāzī, Fakhr Al-Dīn Al-
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