A quest was forcing me to get an Allosaurus. On my way to their spawning spots I was complaining on voice chat that I don't WANT an Allo, they're very flat-colored which I'm not into and hmph I'd rather get any other T-Rex-genre big carnivore–
Turned a corner to find an Ultra Rare melanistic one. I have named it Blackout, and reluctantly concede the point to RNG.