Index L
- Lamarckism
- Lambda see Cosmological constant
- Language
- Langebaan footprints
- Large-scale structure
- Last universal common ancestor (LUCA)
- Lcross satellite
- Leakey, Louis
- Leakey, Mary
- Leakey, Meave
- Leakey, Richard
- Legs
- Lemaitre, Georges
- Levant
- Levin, Gilbert
- Lewin, Roger
- Liberty University
- Life
- Light
- Lightfoot, John
- Lightning
- Linde, Andrei
- Linnaeus, Carolus
- Linnean Society
- Lithosphere
- Little Foot
- Liujiang skull
- Living fossil
- Lizards
- Lobe-finned fish
- Loggerhead shrikes
- L’Osservatore Romano
- Lost City hydrothermal field
- Louisiana
- LUCA
-
Lucy see Australopithecines
- Lumsden, Charles J.
- Lungfishes
- Lyell, Charles
- Lynx arc