When you look at a Brached diagram that classified animales how can you tell how closely related two groups of animals are?

In a branched diagram, or phylogenetic tree, the closeness of relatedness between two groups of animals is indicated by their proximity on the tree. Groups that share a more recent common ancestor appear closer together, while those with a more distant common ancestor are farther apart. The branching points, or nodes, represent divergence events where species evolved from a common ancestor. Therefore, the fewer the branches separating two groups, the more closely related they are.