Here’s a bit more on the Bones Tribe:
The Bones are what they are. They don’t hide their feelings or thoughts from anyone. But it’s easy to get under their skin making them often grumpy and disgruntled. The phrase "you old bucket of bones" has come to mean someone who is in a bad mood, and if you "have a bone to pick" you are upset about something. But make no bones about it, they still have fun. Most doctors in Terrapinia are Bones and they are accomplished at playing piano. Their favorite pastime is fishing, although their catch is often just skin and bones.