Eating a ripe gobus fruit causes a drug-induced state of euphoria which triggers the mating urges. Without the gobus fruit there are no mating urges, and physically no sexual ability. The gobus tree bears it's fruit, and mating occurs. This is followed by the laying of 10 to 20 eggs in the wild, which are then abandoned. Incubation period, the longest on record for any sentient beings.
Hatching takes place during mid-summer.
Once hatched, the young fend for themselves in the wild. Sexual maturity is achieved. By some unknown process, Mogensen now begin to grow attracted to other Mogensen, and seek out cities, towns, or gathering places. The young adult is integrated into society. Royalty do not lay their eggs in the wild, but in hatcheries within their castle walls.