A Maori warrior chants at a Haka during a Waitangi Day celebration, February 6, 2009, in Waitangi, New Zealand. The Maori are one of many groups that have struggled against the violent effects of colonization on their languages. (Photo: &lt;a href=&quot;http://www.shutterstock.com/gallery-73509p1.html?cr=00&amp;pl=edit-00&quot; target=&quot;_blank&quot;&gt;Patricia Hofmeester / Shutterstock.com&lt;/a&gt;)