The Orions are known for the green skin. The males are typically bald. They are taller and more muscular then an average Human male.
The females are very sexual. They are beautiful and Human males can rarely the dance of a Orion female.
In their society, the males are the slaves to the females. The deceive other species by treating the females as the slaves and selling them.
Once sold to a male, the Orion females' pheromones will begin to affect the judgment of the males. This will leave them open to suggestion by the "slave". These pheromones will cause Human females to become ill with headaches. Denobulan males will find their sleep cycles interrupted by the pheromones.
The Orions are known for their raids on other ships and cultures. They also kidnap aliens to sell them.