I noticed the Liger as well. I initially thought that the Liger was made up by Napoleon Dynamite in the movie. It just sounded too bizarre. Even the spell check doesn't know that the "Liger" exists as a word.
Location: Ideas >> Science
Female tiger + Male lion = Liger
This hybrid species doesn't have the gens to inhibit is own growth. As a result, he's growing until is death. Here the result: