Red Deer Are Evolving to Give Birth Earlier in a Warming Climate (image) PLOS Share Print E-Mail Caption Red deer hind (Cervus elaphus) and her young calf on the Isle of Rum, Scotland. In this population, red deer have been giving birth earlier and earlier since the 1980s, because of plastic responses to temperatures and because of genetic changes in response to natural selection. Credit Sean Morris Usage Restrictions CC-BY: Redistribution allowed with credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.