There are a few different types of dragons. Most common are Fire Dragons. There are also Ice Dragons, Metal Dragons, and Wind Dragons. The last two are less common. Like most reptiles, dragons hatch from eggs. Dragon hatchlings don't get along with other dragons. Dragon parents typically separate their hatchlings from others for their first six cycles, as they are possessive and violent. In rare cases, a dragon mother lays more than one fertile egg, with disastrous consequences. It is not unheard of for the strongest hatchling to kill its sibling. Dragons are hard to kill. Their hide is tough and nearly impossible to pierce. However, due to low birth rates and the risk of egg loss to poachers seeking their jewel-like shells, dragons learn self-defense at quite a young age. Dragons have three genders. Due to low fertility rates and the inherent dangers to eggs, some dragons have evolved to both sire and carry offspring. These dragons are called Sources. Always male appearing, nearly eight percent of the dragon population carries this designation. Most dragons have human forms. Long ago, when dragons were hunted nearly to extinction, they needed a way to protect themselves. To hide from hunters, they came together to cast a spell to allow their species to hide in plain sight.