Because their heads are so far from their bodies.
Hello hello.
Why ya going to the airport? Flying Somewhere?" : "How'd you guess?" : "Well, I saw your luggage, then when I saw the airplane ticket I put two and two together. So where you headed?" : "Aspen." : "Mmm, California.. Beautiful."
This is my body, I'm nice with jam."
He had no body to go with.
Why is a giraffe's neck so long? Because his neck is way up here! (Dad Joke)