The Tibetan Lunar Calendar

Each year is characterized by an animal-element-gender triad.

Elements rotate every two years

Animals rotate every year

Gender alternates every year, beginning with female-- so the same animal is associated with the same gender every cycle.

To my understanding, the gender attribution is particularly a feature of the astrological practice of the Aro gTer.

Animals:

1. Female Lagomorph
2. Male Dragon
3. Female Snake
4. Male Horse
5. Female Sheep
6. Male Ape
7. Female Bird
8. Male Dog
9. Female Pig
10. Male Rat
11. Female Ox
12. Male Tiger

Elements:

1. Fire
2. Earth
3. Iron
4. Water
5. Wood

Monthly attribution

Each lunar month of the year has an animal attribution as well:

1. Dragon
2. Snake
3. Horse
4. Sheep
5. Ape
6. Bird
7. Dog
8. Pig
9. Rat
10. Ox
11. Tiger
12. Lagomorph

Sources