This clip describes how genetic mutations can lead to an animal's advantage in survival. Neil deGrasse Tyson talks about a Black bear that turns into a white bear because of a genetic mutation, which later became known as polar bears.
Dave Shutton, an investigative reporter, approaches Bart and Lisa as they're fishing and talks to them. In the middle of their conversation, Bart catches a genetically-mutated fish with three eyes, earning him a spot on the front page of the newspaper.
Due to the high rate of mutation of viuses, hundreds of subcatagories of flu types are in the air. New vaccines are created every year to combat the most common strains for the new season. Melvin Sanicas explains flu vaccines and why they people need a new flu shot every year.
Sophie discusses how plants and animals need to compete in order to survive and the role that adaptations play in their ability to survive. She explains how several animals and bugs have adapted to become better suited to surviving in city environments.
Jean Grey addresses the United States Senate on the topic of mutants. Senator Kelly is opposed to them and convinces the audience that they are dangerous. He advocates for having mutants register themselves so that the government knows who they are and what they are capable of doing.