Art Attack Goldtone Standing Giraffe Front Back Detailed Siamese Twins Animal Lover Stud Post Earrings Each giraffe is 1" x 1" and yes they are twins. Young giraffes hang out in nursery groups until they are around 5 months old, resting and playing together while their mothers forage in the distance. Giraffes are sociable, peaceful animals which rarely fight. Males do perform a behaviour called necking where they will hit necks; however these encounters rarely last more than a couple of minutes and seldom result in injury. Just like snowflakes and human fingerprints, no two giraffes have the same spot pattern. Female giraffes often return to where they were born to give birth. Once there, their calves receive a rough welcome into the world, falling over five feet to the ground.