Colmillo

 is a dog living in Gibson Scrap Yard. It belongs to Old Lady Gibson, apparently warding the place and/or serving as a pet.

About
Colmillo will randomly track you down and attempt to kill Rex (she didnt even attempt to get at me) and she came with a mole rat ....... thing is i took rays brain one of gibsons other junkyard dogs i would like verification if any one else has a moment like this -- X-Box: Same thing happened to me. Colmillo (Fang), Basura (Trash) and Audaz (Audacious), together with two mole rats, attacked my party while entering Helios One main courtyard, looking for spare parts. Thing is, I wasn't even accompained by Rex at the time, although I was carrying Rey (King)'s brain.

Behind the Scenes
'Colmillo' is Spanish for 'fang'.

Appearances
appears in Fallout: New Vegas.