Board Thread:Lore and Fanon Discussion/@comment-20011080-20140225005317

https://twitter.com/Loreology/statuses/427828524385181696

http://eu.battle.net/wow/en/forum/topic/9536553597

According to lore all dragons have been rendered infertile. Not sure when, or if, this will get retconned, but it's official =/ 