Silvestre is an incredibly massive dragon. He was discovered in 2015 when he came across a group of researchers. He was so massive that he paid them no mind. He was able to be tagged and fit with a GPS tracker while he was foraging. 

He is still quite delicate despite his huge size, taking great care not to damage vulnerable flora and fauna as he travels. He has traveled about 1050 miles since scientists started tracking him, and fathered an estimated total of eight forest dragon eggs with two different females. One of those eggs eventually hatched into greater forest dragons. The remaining seven eggs have been tracked, and documentation is progressing slowly.