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Focuses on Costa Rica, a country the size of West Virginia, which protects much of its vast biological diversity in over a million acres on national parks. How these national parks are threatened by the country's economic problems; Effect of gold mining on the ecosystem of the rainforest; Efforts to integrate conservation efforts with development of the region.

Within our lifetimes, at least a fifth of all plants and animals on earth are likely to become extinct. Federal officials have drafted a US government strategy to preserve biological diversity in the Third World. Called the `US Strategy on the Conservation of Biological Diversity' the report calls for several changes in the way The Agency for International Development reviews environmental impacts of projects they sponsor.

Presents news briefs relating to biology. Signing of an international agreement to protect the earth's stratospheric ozone, which includes a freeze on the use of chlorofluorocarbons; Environmental problems facing Central America, and efforts of conservationists to address issues such as natural resource use; Amendment of the Foreign Assistance Act in 1986, which required the U.S. Agency for International Development to spend $2.5 million annually on biological diversity projects.

Reports on how biological diversity arguments are focused on species living in rainforests. The need to preserve marine and other species.