A/N: So basically, I needed to learn biology and this idea popped into my head when I was talking to my mate Siobhan who you can follow on Tumblr here - sassyshovel . tumblr .com
Disclaimer: Shingeki no Kyojin and it's characters do not belong to me
"So Armin," Jean started, looking down at him. "I've come up with a theory about how you're so short and I'm so tall." Armin just raised an eyebrow, continuing to read his book. "Which is?" He asked.
The taller man grinned before clearing his throat. "It's called 'inheritance of acquired characteristics'. Because my mum was always reaching up for things on high shelves, she stretched like clothes in the wash, therefore passing her stretchy-ness onto me, her child." A confident smirk was stretched across his face.
Sighing softly, Armin put his book down and looked up at Jean. "Somehow, I don't think that's quite right." "How so?" Jean sat down opposite his friend. "Well, I don't think your mum could stretch just by reaching for things."
The two stared at each other for a few minutes in silence before Jean spoke. "Alright. What's your theory?"
The blond sat back in his chair. "Natural selection. It's like with giraffes. They changed over many thousands of years so they could reach the tops of trees to get food to eat. I don't know how it happened, but I'm hoping find out soon."
Silence spanned between them again, this time for at least ten minutes. Then suddenly out of the blue, Jean stood up and stormed out of the room, muttering a, "Fuck you and fuck your theory, Armin."
Armin couldn't help but let a small smile cross his face.