"Flesh is his gift. He is your true creator." -Emerald Nightmare boss
I was playing Uldir the other day and noticed the trash in one of the rooms: oozelings of corrupted blood, taking the shape of...various animals? Unstable, sure, but we've never seen them do that before. Then I remembered something Xal'atath said...
"The tauren here are remarkably resilient to corruption, considering their origins."
Simply put: I think the old gods created all life. Not just corrupting titan constructs, but literally everything else. Discuss?