Staff at the Animal World and Snake Farm Zoo had no idea its now-mama sloth was expecting! The baby sloth was a welcome surprise. Sloths sleep up to 18 hours a day, and their thick fur makes it difficult to see outward signs of pregnancy. Baby sloths stay tightly wrapped against their mothers for six months to two years! In the meantime, mom Sylvia and dad Sid are just enjoying getting to know their new little one. InsideEdition.com's Keleigh Nealon (http://twitter.com/KeleighNealon) has more.