Changes

At one time bison herds roamed the plains and valleys from western [[Canada]] down to [[Mexico]].  They served an important part of [[Native American]] survival, but were almost hunted to extinction by European settlers by 1900.  Conservation efforts prevented the extinction of the American bison, but herds today are rare.

At one time bison herds roamed the plains and valleys from western [[Canada]] down to [[Mexico]].  They served an important part of [[Native American]] survival, but were almost hunted to extinction by European settlers by 1900.  Conservation efforts prevented the extinction of the American bison, but herds today are rare.

== Sources ==

== Sources ==

The New American Desk Encyclopedia, Penguin Group, 1989

The New American Desk Encyclopedia, Penguin Group, 1989

[[Category:Ruminants]]

[[Category:Ruminants]]

[[Category:Hunting]]

[[Category:Hunting]]