Moclan

The Moclans are an alien race that appear in The Orville (TV Series).

Physiology
The Moclans are a single-gender humanoid race. They identify themselves as male. Molcans possess light brown skin, their distinct features are their cranial ridges that run along the sides of their head and at the center. Their urinary system is interesting seeing as they urinate once per year. Despite being a single gendered species, Molcans do take mates. They reproduce by laying eggs, the gestation period requires the parent to sit on it until it hatches, which is exactly 21 days.