S2·E9 Urges

Zorak feels the urge to return to his home planet for "Mantis Mating Season", but is reluctant when he finds out he will die if he mates with a female. Michael Sweet persuades Zorak to make the attempt anyway.

Zorak later returns, having been saved by a male Mantis in drag who was part of a resistance movement against the Mantis mating ritual.