
This was shown when Saphira touched Zar'roc with her muzzle, causing it to ripple, when she turned Brom's grave from sandstone to diamond, and when she repaired the Isidar Mithrim. They were connected to the land in strange ways, ways that sometimes even they could not control. According to Brom, dragons could grow to be "larger than a house" and some older dragons could be confused with large hills.

Their color varied from dragon to dragon, and some dragons could even be multi-colored or have clear scales. They developed the ability to breathe fire as they matured. The dragons of Alagaësia were carnivorous flying reptiles, with scales, sharp teeth, four legs, bat-like membraned wings and a tongue that was covered with hooked barbs. Following the Rider War Eragon, Saphira II, Glaedr and the other Eldunarí left Alagaësia for lands to the east to raise the next generation of dragons in safety and to rebuild the Dragon Riders. During the events of the Rider War, Glaedr was murdered by Galbatorix (through Murtagh and Thorn) and henceforth resided in his Eldunarí, which was in Eragon's possession. However, unbeknownst to everyone, a significant number of eggs and Eldunarí remained hidden on Vroengard, the ancient home of the Riders, after the Forsworn plundered the island.

Saphira II and Fírnen (though Thorn, Saphira and Firnen were still eggs).

There were only five known dragons left in Alagaësia following the Dragon War: Shruikan, Glaedr, Thorn, Along with werecats, spirits, Lethrblaka and Nïdhwal, dragons were among the few known sentient non-humanoid species. While most roamed free and did not commonly associate with the civilizations of other races, a significant number were the mounts and lifelong companions of the Dragon Riders. Dragons were an ancient race of sentient reptilian creatures native to the land of Alagaësia.
