The cutting of primeval forest and other disasters, fueled by the demands of growing human populations, are the overriding threat to biological diversity everywhere.

Individual versus group selection results in a mix of altruism and selfishness, of virtue and sin, among the members of a society.

The human juggernaut is permanently eroding Earth's ancient biosphere.

Ants are the dominant insects of the world, and they've had a great impact on habitats almost all over the land surface of the world for more than 50-million years.

These slender little people (Homo Habilis), the size of modern 12 year olds, were devoid of fangs and claws and almost certainly slower on foot than the four legged animals around them. They could have succeeded in their new way of life only by relying on tools and sophisticated cooperative behavior

This is the assembly of life that took a billion years to evolve. It has eaten the storms - folded them into its genes - and created the world that created us. It holds the world steady.

Biological diversity is the key to the maintenance of the world as we know it... Eliminate one species, and another increases to take its place. Eliminate a great many species, and the local ecosystem starts to decay.