![](https://image.tmdb.org/t/p/original//1sbO455Lp7BXxZKDtSj73vFg9fB.jpg)
Lightning the German Shepard dog
Lightning was a German Shepherd from a line of canine silent film stars. A grandson of Strongheart, Lightning was billed as "The Wonder Dog" and "The Marvel Dog". He began life as a runt but grew to be larger than average for the breed, and he was very intelligent. Lightning appeared in numerous movies.
From Wikipedia.