Destiny's "explore" worlds are beautiful but feel barren. I understand if Mars and the moon are not that populated with living things, but Earth needs some animals or some thing in it that create the feel of a living Eco system (ala far cry). And honestly I am hoping that new planets yet to be seen will include various forms habitats and ecosystems ( jungle, snow, dessert, Forrest, ect) with each having their own sets of life and population on the planet.