Then let me hear no more of our kind's natural necessity to form hierarchical groups. An observer viewing human life shortly after cultural takeoff would easily have concluded that our species was destined to be irredeemably egalitarian except for distinctions of sex and age.
"More than 180 countries have signed an agreement that it is hoped will slow the loss of species and habitats around the world.
Delegates agreed to set up networks of protected areas on land and sea and to offer incentives for poorer nations to better protect the environment.