Encyclopedias, Almanacs, Transcripts, and Maps
- Musky Rat-Kangaroo: Hypsiprymnodontidae
- Mussel Shrimp: Ostracoda
- Musso, J(uan) Ricardo (1917-1989)
- Mustard Family (Brassicaceae)
- Mustard Family (Brassicaceae)
- Mutants: Enhanced Tolerance or Sensitivity to Temperature and pH Ranges
- Mutations
- Mutual UFO Network, Inc. (MUFON)
- Mycotoxin
- Mycotoxin
- Myers, A(rthur) T(homas) (1851-1894)
- Myers, John (d. 1972)
- Myofibrillar Myopathy
- Myomancy
- Myotubular Myopathy
- Mysids: Mysida
- Mystacocarids: Mystacocarida
- Mysteria Mystica Aeterna
- Mysteria Mystica Maxima
- Mystic Order of Veiled Prophets of the Enchanted Realm