Natural Selection by Malinda Lo

1
Kurra
    Kurra is a planet of oceans and mountains, all vertical ascent or plunging drop to rock-strewn waves. Out on the water, floating cities spread like silver lattices over deep blue.
    My family comes from the mountains, and that’s where we live. My mother told me that her great-great-great-grandparents built our house. It’s perched on the edge of the mountain called Isi Na, a ten-minute cable ride from Isina’uru,
Isi Na City
, which is anchored to the mountain with long metallic ropes like a spider’s web.
    I stand at the edge of the deck, leaning against the glass and steel railing, and look out and away. I imagine I’m a bird soaring high above the water, the islands tiny dots below. But there aren’t any birds here—not exactly. Not like on Earth.
    I was born on Earth, not Kurra. I’m not human, even though I try to be. My people, the Imria, think I’m a little unusual because of that. They call me an Earthsider: as if I’ve crossed a line, chosen a side. Gone native.
    “Be careful,” Ama warns me. “Don’t lean too far over.”
    I look back at my parents seated at the table behind me. “I’m not going to fall,” I say, irritated. Ama’s always telling me to stop doing things. I think all her years on Earth have dulled her Imrian sense of adventure.
    Aba—one of my fathers—reaches for Ama’s hand as he says, “She’ll be fine. She has to learn how to watch out for herself.”
    Ada, my other father, glances over at me. Ada has heard Aba and Ama argue over this too many times to count, and lately he’s been siding with Ama. “Be careful,” he tells me.
    I sigh but pull back from the edge a bit as I look down toward the city. I see the bright sheen of it on the mountainside below, the buildings gleaming in the sun. I haven’t been to Isina’uru in a week, and I wonder what’s been going on at school. I’m so isolated up here, cut off from my friends and their lives. It’s startling to realize that I miss them, that I’ve become part of their world—
this
world.
    Eight months ago, when Ama and I returned to Kurra after four years on Earth, I felt like a freak. I
looked
like a freak, dressed in my clothes from Earth that are totally weird here. I realized soon enough, though, that my Earthsider status was exciting as well as strange. We Imria have been going to Earth for so long, but I’m the first one to be born there, to grow up there. On Earth, I had to keep all that secret, but here on Kurra, it makes me sort of a celebrity. I never expected that.
    “… remember what it was like when you were her age?” Aba says.
    “Of course,” Ama replies, snorting. “I was reckless.”
    “And you survived,” Ada says.
    “I only want what’s best for her,” Ama responds.
    I stiffen. My parents have started in again on what they think I should do with my life. It’s another old debate. I think they like arguing about it; they don’t even seem to notice I can hear them.
    “We have to let her follow her interests,” Aba says. He always says he wants me to be free to do what I want, but I know he really wants me to be a painter, like him. Ama wants me to be a scientist—preferably a geneticist—like her.
    “Only within the confines of her duties,” Ama says. “She knows that.”
    “I don’t see why we need to impose that on her,” Aba objects.
    “Within the confines of her duties, our daughter can choose how she can best serve,” Ada says. He’s never said flat out what he thinks I should be, but I know he wants me to be like him: a diplomat. “She’s young. She has plenty of time to decide.”
    But Ada’s wrong. I’m turning fifteen in a few days, and then I will have to make a choice. Who do I think I am? I will have to know by then.

2
Earth
    When I was thirteen, at the end of eighth grade back on Earth, I went on a school-sponsored camping trip to the Coconino National Forest near Sedona, Arizona. I was at the Hunter Glen School then, a private academy outside