“Why Do Village Dogs All Look Alike?”* Of the billion dogs in the world, three-quarters of them look as much alike as do the individuals of any other species. A few years ago we asked a Navajo shepherd what a Navajo sheepdog looked like. He said, “A Navajo sheepdog is not too big and not too small.” To us the Navajo sheepdogs were identical in size and shape and color variations with the sheepdogs of Sonora and the village dogs in the mountains of Venezuela or the ones we worked with in eastern and South Africa or saw in India and China. That is true of the majority of dogs in the world—they are not too big and they are not too small. One of the most fascinating details about that 85 percent of the dogs in the world that control their own reproductive life is: they all look alike. The similarity between the pigeon world and dog world continues. Pigeons, in some sense, all look alike. The pigeons in the Mexico City dump fly and look just like the pigeons in Trafalgar Square, like the pigeons in Istanbul, like the pigeons in Central Park, like the pigeons in Milan. . . .
“Parks, Biodiversity, and Education” by Edward O. Wilson* This is a very important meeting and book, and I’m grateful to be part of it. First, I’ll summarize what scientists have learned about biodiversity and extinction, especially during the past 20 years. Then I’ll suggest what I believe is the only viable solution to stanch the continuing high and growing rate of species extinction. Then, finally, I’ll make the point already obvious to many of you, that our national parks are logical centers for both scientific research and education for many domains of science, but especially and critically biodiversity and conservation of the living part of the environment. The world is turning green, albeit pastel green, but humanity’s focus remains on the physical environment—on pollution, the shortage of fresh water, the shrinkage of arable land, and on that great, wrathful demon, climate change. In contrast, Earth’s biodiversity, and the wildlands on which biodiversity is concentrated, have continued to receive relatively little attention. This is a huge strategic mistake. Consider the following rule of our environmental responsibility: If we save the living environment of Earth, we will also save the physical nonliving environment, because each depends intimately on the other. But if . . .