yellow lab hit and killed by a car. but if you watch this black lab standing guard over his mate like there was some oath between dogs it is remarkable. the black lab is on a busy boulevard in los angeles. the person who took this video put orange cones around the dog so it went be hit. >> i took a video and couple pictures of it. the dog knew his mate got hit by a car and it didn't care about its own life. it just decided to lay there with the dog. i mean it got to me afterwards. >> reporter: it got to a lot of people. when animal control arrived on scene that dog with us visibly shaking. but neither of these dogs had collars on. there were no chips for identification. so animal control named this dog