Greg Cochran has written a few times about the gay pathogen possibility, and birth order increasing male homosexuality (possibly due to accumulated hormonal changes in the womb from repeated pregnancies) is a well known phenomenon. Both would be biological factors that aren't caused by heredity.
Greg Cochran has written a few times about the gay pathogen possibility, and birth order increasing male homosexuality (possibly due to accumulated hormonal changes in the womb from repeated pregnancies) is a well known phenomenon. Both would be biological factors that aren't caused by heredity.
Greg Cochran has written a few times about the gay pathogen possibility, and birth order increasing male homosexuality (possibly due to accumulated hormonal changes in the womb from repeated pregnancies) is a well known phenomenon. Both would be biological factors that aren't caused by heredity.