Later, people also tried to use evolution to support racism. Evolution itself is not about racism. However, people wanting to justify racism claimed that black people were inferior. They said that because evolution shows that, in nature, "better" animals tend to survive, leading to evolution of improved animals, they had the right to oppress the "weaker". They believed they were clearly "better", but that would need evidence. There is no agreed evidence that any race of humans is better than any other race.