How would a Pokémon tree of life look like bros? Trees like these don’t take into effect that egg groups exist. For example Tangrowth and Venasaur being able to produce an offspring despite the author of this picture put them fairly apart or how some Pokémon who are close in the tree aren’t part of the same egg group. In real life a horse and a donkey can produce an offspring because they’re closely related while a horse can’t with a goat. In Pokémon context it means that every Pokémon within an egg group is closely related to one another and even more so with those with two egg groups.