Usage in game:
1) tame aid- can preserve prime meat allowing you to tame carnivores with ease.
2) pack hound- I’d personally only recommend for packs of five and upward, but their ability to heal like Argents means they gain strength with every victory.
3) Pet- Their just cute.
Great things to bring with you when your gonna tame something because it can carry prime meat and the prime meat will last longer inside it's meatpack. All you have to do is cryopod it and bring it over to your soon to be tamed creature then throw it out and put the meatpack on it and just stuff with your prime meat for your tame and wait until the knocked out creature is hungry then put one prime meat out from your hyaenodon meatpack into it. And then repeat until it is tamed.
Easy to find, breed and level. King of Cave Diving. Can use golden hesperornis eggs to quickly level up petting and pack bonus make the tanky with high dps. Can easily reach 4k hp with 500% meelee. Yutyranno buff will make them extremly hard to kill, they heal themselves when eating corpses are small and get armor through their saddle one of the most reliable creatures on the ark.