Darwin was a very loyal and loving dog. his master, a brilliant paranormal scientist (Hint Hint), cherished his company and kept him as happy as any dog could be.
Darwin was very protective of his master's work and was a great guard dog for the secret lab, he followed all of his master's directions and stayed clear of his dangerous devices and experiments. however, he had a severe weakness for sausage.
One fateful night, Darwin was startled by a man that had snuck into the lab. springing into action, Darwin sought to scare the man away, however, the man brought fourth a succulent sausage which mesmerized Darwin, after placing it down next to a particle accelerator device, Darwin quickly went to devour his prize.
Now, he guards the lab in the afterlife, and manages to keep all of his eyes on the lookout for sausages.