<span style="color: #222222;">New research indicates poaching has led to more elephants being born tuskless. During the Mozambican civil war, 90% of elephants in Gorongosa National Park were killed for their ivory. When the population recovered after the conflict, a larger proportion of female elephants were born tuskless.</span><br />'' <span style="color: #222222;">  </span><br />'' <span style="color: #222222;">The scientists say most of those who survived the poaching carried a rare genetic mutation that stops tusks from growing, and passed the trait on to their offspring.</span><br />'' <span style="color: #222222;">  </span><br />'' <span style="color: #222222;">The scientists say the spread of the mutation shows how human interference can have an impact even on animal anatomy.</span>