Changes

==Social organization==

==Social organization==

Human self-expression has led to complex competitive and co-operative social groups. Some revolve around abstract symbols or arbitrary land divisions associated with group history, others around perceived genetic or philosophical differences. Humans may belong to several groups simultaneously. Competition for resources plus primate territoriality leads to wars, and the human capacity for tool-building to improved technology with which to fight them. The rise of globalization and information-sharing, especially about human effect on our shared planetary environment, holds a hope that as a predator species we will avoid rendering ourselves extinct, as we have done so many other species.

Human self-expression has led to complex competitive and co-operative social groups. Some groups are based around abstract symbols or arbitrary land divisions associated with group history, others around perceived genetic or philosophical differences. Humans may belong to several groups simultaneously. Competition for resources plus greed leads to wars, and the human capacity for tool-building to improved technology with which to fight them.

 

== Longevity ==

== Longevity ==