Maybe certain genes facilitate a particular strategy to evolution. And part of an organisms phenotype makes the species evolve in a particular way that gives g

Maybe certain genes facilitate a particular strategy to evolution. And part of an organisms phenotype makes the species evolve in a particular way that gives genes an advantage over successive species. Adapting to the evolutionary environment. And naively birds are different. They can fly great distances in a single lifetime and cross many different habitats. In the time dimension that is very different to a plant or a small mammal. Not sure if that actually makes a difference though over such long timescale. An insect family can spread across the world just like a bird can.