Comment on

• Fraternal Birth Order, Family Size, and Male Homosexuality: Meta-Analysis of Studies Spanning 25 Years.

  Blanchard R. Blanchard R. Arch Sex Behav. 2018 Jan;47(1):1-15. doi: 10.1007/s10508-017-1007-4. Epub 2017 Jun 12. Arch Sex Behav. 2018. PMID: 28608293
• Why In Utero and Postnatal Birth Order Effects May Have Different Patterns.

  Salmon CA. Salmon CA. Arch Sex Behav. 2018 Jan;47(1):37-38. doi: 10.1007/s10508-017-1069-3. Epub 2017 Sep 27. Arch Sex Behav. 2018. PMID: 28956185 No abstract available.
• Reasons for Caution About the Fraternal Birth Order Effect.

  Zietsch BP. Zietsch BP. Arch Sex Behav. 2018 Jan;47(1):47-48. doi: 10.1007/s10508-017-1086-2. Epub 2017 Oct 2. Arch Sex Behav. 2018. PMID: 28971279 No abstract available.
• Understanding Homosexuality: Moving on from Patterns to Mechanisms.

  Gavrilets S, Friberg U, Rice WR. Gavrilets S, et al. Arch Sex Behav. 2018 Jan;47(1):27-31. doi: 10.1007/s10508-017-1092-4. Epub 2017 Oct 6. Arch Sex Behav. 2018. PMID: 28986707 No abstract available.
• Volvivity, Femininity, Fraternity: Breaching the Sexual Orientation Fortress.

  Wampold CH. Wampold CH. Arch Sex Behav. 2018 Jan;47(1):43-46. doi: 10.1007/s10508-017-1101-7. Epub 2017 Oct 25. Arch Sex Behav. 2018. PMID: 29071545 No abstract available.
• Fraternal Birth Order Effects on Personality: Will Reasonable Claims Require Extraordinary Evidence?

  Bartlett NT, Hurd PL. Bartlett NT, et al. Arch Sex Behav. 2018 Jan;47(1):21-25. doi: 10.1007/s10508-017-1109-z. Epub 2017 Nov 2. Arch Sex Behav. 2018. PMID: 29098453 No abstract available.
• Homosexual Sons and the Fraternal Birth Order Effect: The Role of Elevated Maternal Intrauterine Testosterone.

  James WH, Grech V. James WH, et al. Arch Sex Behav. 2018 Jan;47(1):33-36. doi: 10.1007/s10508-017-1113-3. Epub 2017 Nov 20. Arch Sex Behav. 2018. PMID: 29159753 No abstract available.
• The Fraternal Birth Order Effect Is Robust and Important.

  Bailey JM. Bailey JM. Arch Sex Behav. 2018 Jan;47(1):17-19. doi: 10.1007/s10508-017-1115-1. Epub 2017 Nov 20. Arch Sex Behav. 2018. PMID: 29159754 No abstract available.
• O Gay New World: Ramifications of the Maternal Immune Hypothesis.

  Swift-Gallant A, Breedlove SM. Swift-Gallant A, et al. Arch Sex Behav. 2018 Jan;47(1):39-41. doi: 10.1007/s10508-017-1118-y. Epub 2017 Nov 29. Arch Sex Behav. 2018. PMID: 29188406 No abstract available.