Childhood characters revisited

Back in 1997, those two guys were among the main characters that starred (and still do) in my biggest project to date. Leilo and Frederik, two averals flying an EN-12. While I invented Leilo for that story, Fred's character had been there since 1994. Still, some other characters would laugh at him for being thought up so late.
My aversion to generic fantasy made me find answers to why his ears are pointed and why the **** guinea pigs pilot aircrafts. Saying it this way makes my stuff sound more retarded than it hopefully is. ^^'