Pseudo-dragon

In the cancelled Warcraft Adventures, pseudo-dragons are small, sentient dragons. Only one is seen, Singe, the talking pet of Grom Hellscream. He bears much resemblance to the black whelps of World of Warcraft.

Speculation
They may be an early version of the dragon infants of later games; whelps, or a completely different species altogether. The term 'pseudo' implies that it is of a species different than dragons. They may be comehow related to Deathwing, the black dragon that also features in the game.