Hmm, aepycamelus, that's a big word! Okay, let's break it down.
Aepy means tall, while camelus means camel. So aepycamelus is literally a tall camel!
But wait, there's more to it than that. Aepycamelus was actually an extinct species of camel that lived a very long time ago. It was much taller than the camels we know today and had a longer neck too.
This special camel used to live in North America during a time when there were lots of other big animals around. It had to be tall to reach the high leaves on trees and avoid getting eaten by predators.
So, to sum up: aepycamelus was a really tall camel that lived a long time ago and was adapted to survive in an environment with lots of big animals around.