a camels lumps one it's back is called there water pouch. the reason for this is they store all there water into there lumps.
Because camels are camels
a big lump on it's back, it's ability to carry twice it's own weight, and I think that camels spit a lot!
an unidentifiable substance forming a lump. I would call it a.......lump.
The camels back wad painful
Camelids
A lump on the back of your head that is itchy may be from an inset bite. If the lump does not go away, visit a doctor.
camelions
Camel Keeper
it is a "straw" that breaks the camel's back!
then
A calf or git (not insulting!).
Yes they do The ones from India could, but not the people we also call Native Americans.