Baby Camel: Dad, why have we got humps?

Dad Camel: The humps contain the fat necessary to sustain us through the days when we're walking in the desert my son.

Baby Camel: So why do we have bushy eyebrows?

Dad Camel: They protect our eyes in the raging sandstorms my son.

Baby Camel: So why have we got big feet?

Dad Camel: They stop us sinking in the sand my son.

Baby Camel: So dad, what we doing in a zoo?