If you see a raptor that has an orange glow around its chest, then it means that raptor is... AN ALPHA! ...in its pack which means that it is a high level, probably mate boosted, does more damage, and that there are probably more raptors near you.

Note this when trying to find high level raptors as you wanna target the one with an orange aura near its chest as it has the highest level in the local area.

And to the people who are playing old ark mobile, ignore everything that I said, as this feature only exists for allosauruses on old ark mobile.