Discusses the threats faced by the Bengal Tiger in India that are bringing it to the brink of extinction. These include loss of habitat, loss of food sources, and poaching.

Describes plants and animals that lived during the Ordovician Period, where it falls in the geologic time scale, tectonic activity happening then, the climate and environment, and extinction events.

Gives history of Madagascar's cultural and economic development in relation to its land clearing practices. Cites biological species indigenous to the island, and their imminent destruction. Includes links to several case studies.