In the beginning of time Hod created people, then animals and tree to eat off and created animals and water.
It started by natural events where each male and female animal mated and created offsprings over and over again where the dragons came to being.
Dragon babies were born and grew up very big and fierce, they trusted no one. They blew out fire from their nose and mouths. Overtime dragons disappeared and became obsolete leaving their bone in the sand.