- fady
- fahavalo
- famadihana
- fanala
- fanaloka
- fauna
- faunifory
- female
- femur
- fen
- feral
- fertilization
- ficiform
- filanzana
- filiform
- fissure
- Fitch-Margoliash method
- flabellate
- flexure
- floodland
- flora
- fokonolona
- foliaceous
- folivory
- foothill
- foramen
- foramen magnum
- Forêt d'Ambre
- forma
- formalin
- fossa
- Founder effect
- foveola
- frenatum
- freshwater
- friable
- frontal bone
- frugivory
- fruit bats
- fulvous
- fungi
- furcate
- furrowed
- fusiform