Urban Dog "The Ultimate Antler Dog Chew" - JumboDid you know? Only Male Elk grow antlers that are naturally shed once a year. In fact, all antlered mammals, including Moose & Deer shed their antlers annually. Once the Elk shed their antlers, they immediately begin to grow back and within 3 4 months, they will have a whole new set of antlers. In fact, in the wild, most animals will enjoy a nibble on antlers they find that have fallen in the woods. This cycle will continue for their entire life