Authenticated (28/04/09) by Dr. Luca Luiselli, Senior Researcher in Ecology, Institute Demetra, Rome, Italy.
http://www.intecol.net/pages/002_personal.php?id=lucamlu
Incubate: To keep eggs warm so that development is possible.
Oviparous: An animal that reproduces by laying eggs, which hatch outside the mother's body.
Subspecies: A population usually restricted to a geographical area that differs from other populations of the same species (generally in colouration or other morphological characteristics), but not to the extent of being classified as a separate species.