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1. Rising to the challenge? Inter-individual variation of the androgen response to social interactions in cichlid fish.

2. Agonistic interactions elicit rapid changes in brain nonapeptide levels in zebrafish.

3. Androgen response to social competition in a shoaling fish.

4. Brain levels of nonapeptides in four labrid fish species with different levels of mutualistic behavior.

5. Photoperiod modulation of aggressive behavior is independent of androgens in a tropical cichlid fish.

6. Castration affects reproductive but not aggressive behavior in a cichlid fish.

7. Cortisol mediates cleaner wrasse switch from cooperation to cheating and tactical deception.

8. Social instability promotes hormone-behavior associated patterns in a cichlid fish.

9. Immune activation is inversely related to, but does not cause variation in androgen levels in a cichlid fish species.

10. Brain levels of arginine-vasotocin and isotocin in dominant and subordinate males of a cichlid fish.

11. Social environment affects testosterone level in captive male blue-black grassquits.

12. Does access to the bluestreak cleaner wrasse Labroides dimidiatus affect indicators of stress and health in resident reef fishes in the Red Sea?

13. Environmental modulation of androgen levels and secondary sex characters in two populations of the peacock blenny Salaria pavo.

14. Brain aromatase mRNA expression in two populations of the peacock blenny Salaria pavo with divergent mating systems.

15. Brain and gonadal aromatase activity and steroid hormone levels in female and polymorphic males of the peacock blenny Salaria pavo.

16. Endocrine control of sexual behavior in sneaker males of the peacock blenny Salaria pavo: effects of castration, aromatase inhibition, testosterone and estradiol.

17. The relationship between social status, behaviour, growth and steroids in male helpers and breeders of a cooperatively breeding cichlid.

18. Intra-sexual variation in male reproduction in teleost fish: a comparative approach.

19. Endocrine correlates of intra-specific variation in the mating system of the St. Peter's fish (Sarotherodon galilaeus).

20. Neurochemical correlates of male polymorphism and alternative reproductive tactics in the Azorean rock-pool blenny, Parablennius parvicornis.

21. Comparative analysis of male androgen responsiveness to social environment in birds: the effects of mating system and paternal incubation.

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