How animals get their characteristics

Giraffe Necks

A Long, long time ago, giraffes had very short necks, about an inch shorter than any normal human's neck to be precise.

It was a hot summer's day and all the giraffe families came together to have a picnic. All the little giraffes were playing games and the mothers and fathers were talking. Cheetos, a little giraffe was playing with 2 of his cousins, Fritos and Doritos. They were playing with a ball and passing it by bouncing it on their heads. There was one naughty little giraffe though. His name was Lays. He really liked to get Cheetos and other little giraffes into trouble. Cheetos, Fritos and Doritos were all getting very thirsty and tired so they decided to have a rest for a while. Lays saw that they were not playing anymore so he decided to do something naughty to them.

"Nah, nah, nah boo, boo! Where did your ball go? Mwahhahahh!" Lay teased,

"Uh oh!" Cheetos said, and pointed to a nearby tree and the ball was stuck between 2 very high branches. "Wahhh!" Doritos cried. Then, Cheetos had an idea. 
"How about you carry me so I can get the ball?" He said to Fritos. She said okay. 
Doritos just stood and watched. The ball was still too high even when Fritos carried Cheetos. Then Cheetos called Doritos to come and help. The next thing you know, Fritos was carrying Doritos and Doritos was carrying Cheetos! It was the funniest sight ever. Finally, Cheetos could reach the ball. But then Fritos lost her balance and fell over. So did Doritos. The only little giraffe that didn't fall was Cheetos. This was because his neck got stuck between the 2 branches that the ball was stuck in. Luckily, the ball fell off the tree, but Cheetos was stuck!

"Ouch!"
Cheetos cried. "Too bad!" Lays laughed, and stuck out his tongue.

Fritos and Doritos went to get some help. All the giraffes were gathered around that tree, and were pulling on one of Cheetos's legs. Poor Cheetos's neck was getting longer and longer and longer! Finally, after a few hours of pulling, Cheetos's head slipped through the branches. 
All of the giraffes looked at his odd looking neck. "Ewwwww!" Lays shrieked. Cheetos's neck was very handy though. He could eat leaves off of a tree without jumping for them and he loved the view from up there. All the giraffes saw how handy the long neck was, so all of them, one after another took turns to go up that tree, get their heads stuck in those branches, and get all the giraffes to pull them. Soon enough, all the giraffes had longer necks than ever.