Sex Ratio

Malaria parasites and related Apicomplexans are the causative agents of the some of the most serious infectious diseases of… (More)

BACKGROUND Incidence of multiple sclerosis is thought to be increasing, but this notion has been difficult to substantiate. In a… (More)

BACKGROUND 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD or dioxin), is commonly considered the most toxic man-made substance. We… (More)

Brilliant blue and violet structural colours are common plumage ornaments in birds, but their signalling functions are poorly… (More)

Sex ratio theory predicts that, if prevailing ecological or social circumstances differentially influence the fitness benefits of… (More)

OBJECTIVE To estimate the prevalence of diabetes and the number of people with diabetes who are > or =20 years of age in all… (More)

We investigated the possible association between the Kobe earthquake (January 1995) and the sex ratio among live-born infants… (More)

When the relative fitness of sons and daughters differs, sex-allocation theory predicts that it would be adaptive for individuals… (More)

Parents will increase their fitness by varying the sex ratio of their progeny in response to differences in the costs and… (More)

BECAUSE the primates are a particularly well studied group they provide a rare opportunity to investigate the adaptive… (More)