I was riding my Argy around and I see a whole bunch of predators including a Rex, attacking each other so I decide to kill them with my argy then after they're dead I land to loot and a couple allo's come and I pull out my shotgun and say "let's do this" then out of nowhere, a bright red Rex spawns and I'm like "oh, cool, a bright red Rex" and it comes closer and one shots me, kills my argy, breaks my flak armor, and then I realize "hey its an alpha," so I respawn in my base stock up on tranq darts and toxicant arrows, fly back with my pteradon, start shooting it from a big rock, consumed 50 tranq darts and 20 toxicant arrows, use my spyglass and when I see the torpor bar the first thing that comes in my head is "f$ck this" it was 0.0%