Editing Periodic Table of Dragons (section)

==Rubidium 37==
Rubidium and Cesium dragons are very closely related subspecies, both reacting very violently to water, and both living in extremely isolated, cold deserts. Assumed to be the result of a disadvantageous mutation that left the species overspecialized, they cannot tolerate heat or moisture, and have very soft flesh by the standards of Metallics, barely tougher than human skin.

Their populations are small by necessity, for there are few regions they can inhabit, and few predators they can overcome.

Though the two species look similar, their flames give them away. Cesium dragons give off a blue-violet flame, and Rubidiums produce a brilliant peach-red.

These dragons interact extremely rarely with any other species out of fear of injury and moisture, and even with each other, socializing is uncommon. Only a few human explorers have ever encountered these dragons.

Their strangest quirk is the obsessive need of Cesium dragons to keep time, probably caused by a recessive genetic trait. They are brilliant makers of sundials, and every Cesium dragon has one at all times.