User blog comment:Lord Loss/Discussion of the Week: Cinematics/@comment-1011548-20121126194732/@comment-4212769-20121128074046

The problem is that if Duramboros gets injured it's probably a bad idea burrowing as dirt can get into the wound. So fleeing by foot would be the (seemingly) better option.

I believe Barioths (both subspecies) are monogamous. So I think two Barioth Subspecies as hunting partners could occur.

As the competitors in the Sandy Plains are few Barioth Subspecies only give birth to one or two youngs unlike the Barioth in the Tundra having often three cubs (as seen in the Ecology books). So I believe that more than two individuals won't hunt unless the young Barioths join the hunt what I don't think would happen when hunting a Rust Duramboros.