User blog comment:Songuyenca/Tip to make money at lower level?/@comment-4988993-20120604094546/@comment-97.96.251.189-20120604140327

Yep they do. You make more money the higher level they are (they gain levels through feeding) but it is so expensive when you are just starting out that I didn't bother until I was higher up. Once you start having an extra 5k around, I'd start feeding the dinos. After they get to level 10 (takes like 20+ days) you'll make 220k from each one you sell, if they are common dinos.