<br /><br />Wildlife experts warn that a rare northern white rhino is closer than ever to extinction following the death of one of only six of animals left.<br /><br />Suni – as he was known – was one of the last two males in a breeding programme at a wildlife sanctuary in Kenya.<br /><br />Conservationists have struggled to reverse a decline in several African rhino species due to ivory poaching in recent decades.<br /><br />Rhino horn sold on the streets of major Asian cities was last year more valuable than gold or platinum, with traders asking for about $65,000 per kg of rhino horn.
