Linus is a 1½-year-old black male born in October 2010. His tattoos are still being researched, but Truffles is his littermate. Linus was turned in to an Amarillo shelter by a coyote hunter. When he arrived he had a positive titer to Ehrlichia Canis and has now completed successful treatment. A PCR test (polymerase chain reaction) test was performed which was negative to the tick borne disease panel.

Linus is cat trainable.