Deer calves live well protected in packs and are also protected by the well camouflaged in the forest with white spots on their back. Because they are quick Deer have to run to escape predators with long ones Equipped with legs. Male deer raise their antlers during the Mating time in rank competitions. You also grow during this time a mane. This consists of thick fur and makes him more threatening works. Red deer are -- depending on whether they are in captivity or live in the wild -- between ten and twenty years old.