Scrat

Scrat is an acorn-obsessed saber-toothed squirrel. Scrat lives in the Ice Age. Unlike the rest of the Earth's inhabitants, he is unaware of the current changes. He lives his bouncy life and looks for a better place for his mega acorn. Scrat is unfortunate because his obsession with acorns often makes him forget about safety. Scrat has been struck by lightning, chased by lava, and had to fight piranhas... Despite misfortunes on the acorn front, he triumphed on the loving one. He had a relationship with squirrel Scratte, but he had to break up with her. Guess why? Because of the acorn that the squirrels couldn't share, of course.

His life goal is to stick the acorn in the ice.