Although technically omnivorous, the Va-gas cannot survive without regular consumption of meat. Since natural components of the Moon fauna such as the Rympth and the Flying Toad are poisonous, there is a very limited supply of species available for them to prey upon, leading them to cannibalize rival tribes as well as the sapient humanoid U-gas. The U-gas, in turn, are known to breed captive Va-gas for meat, as do the Kalkars. They speak the same idiom used by the other races of Va-nah: a tonal language, described as sounding very much like music.