1. Zebra finches

2. Song System

3. RA as an example

4. Testes Default?, Ovaries need Estrogen +FAD

5. Gynandromorph has Masculine, but Lateralized Song System

6. Brain differences in absence of gonads HVC makes connections with RA in males only Happens even in dish So gonads not needed BUT… needs AROM, ER

7. Naked mole rats Not moles or rats! East Africa Live underground Eusocial ~ Hive Only 1 queen, 2-3 breeding males Rest of colony are prepubertal indefinitely but can become reproductive

8. Olfaction, pheromones and human sex

9. Women can smell genes! Human leukocyte antigen (HLA) loci polymorphisms Preference odor of men whose HLA alleles match the ones that she inherited from dad! Not true of uninherited paternal HLA alleles or any maternal HLA alleles. Immune advantage? Fertility issue?