Sexual dimorphisms (SDs) have evolved in mammals to assure greater reproductive
success for individuals, usually males. Secondary sexual characteristics (SSC) developed to …

Abstract Background In Western gender-neutral countries, the sex ratio at birth is estimated
to be approximately 1.06. This ratio is lower than the estimated sex ratio at fertilization which …

Background Sex allocation of offspring in mammals is usually considered as a matter of
chance, being dependent on whether an X-or a Y-chromosome-bearing spermatozoon …

Some studies suggest that fetal sex plays a role in maternal physiological processes during
pregnancy including glycemic control, blood pressure, and cortisol regulation. However …

A high‐glucose concentration in the reproductive tract during early development may result
in aberrant embryo or fetal development, with effects that could have a greater impact on …

Can mammalian mothers adaptively control the sex of their offspring? The influential Trivers‐
Willard hypothesis (TWH) proposes that when maternal condition increases the fitness of …

The ability to adjust sex ratios at the individual level exists among all vertebrate groups
studied to date. In many cases, there is evidence for facultative adjustment of sex ratios in …

Recognizing the potential value of steroid hormone measurements to augment non-invasive
genetic sampling, we developed procedures based on enzyme-linked immunoassays to …

Parental sex preferences have been documented in many native populations, but much less
evidence is available on immigrants' preferences for the sexes of their children. Using high …

While a maternal diet high in saturated fat is likely to affect foetal brain development,
whether the effects are the same for male and female offspring is unclear. As a result, we …