Answer
Well, lions have mains right? Tigers don't. So why is that? It is because they have different behaviors. Tigers like to swim, and lions don't , right? They have different habitats, social hierarchies, and they have there own subset of genes. Like how tigers have stripes and lions don't. They have a different pigment gene that determines what color there fur is. Like how snow tigers are white and Siberian tigers are orange. That is because the snow tiger is missing the gene that makes their fur orange.
