A/N: I have to remind myself to update this story once in a while XD I'm glad you're enjoying those drabbles guys, thank you for the reviews! This one is pure fluff lol.
GIRAFFE
"Daddy? Why do giraffes have long necks?"
Olivia, who had been busy watching one of the giraffes as he chewed on a big leaf all the while looking bored, dropped her eyes to look at her six-year-old son. He too was staring at the chewing giraffe; his brow was furrowed, an intense look of wonder on his face, and he looked so much like his father at that instant that she couldn't suppress a grin.
Peter bent over the railing, so his face would be leveled with Charlie's, and he asked: "Do you remember when we talked about Darwin and his theory about evolution?"
"Sure," Charlie nodded. "Natural selection. 'Survival to the fattest'."
"Fittest, Charlie, fittest." Peter corrected with a chuckle. "Well, according to Darwin, a long looong time ago, giraffes didn't generally have a long neck. But some of them did, and they could get more food, and make more babies. The one with short necks eventually died out, and the long necks conquered the world."
Charlie nodded approvingly, smiling knowingly at his father: "Nature's cruel." And Peter nodded with him, sharing an enlightened look.
For a moment, Olivia just stared at them. And then, she couldn't help herself.
"I used to be able to cross between universes, you know."