Differences in Misreporting of Sexual Behavior Over Time

Sexual Differences in Foraging Behavior of Fiddler Crab, Uca sindensis (Decapoda: Ocypodidae)

Fiddler crab females have two small feeding claws while males have only one the other is enlarged and used as a weapon as well as a mate attraction signal. The study was conducted on the small intertidal fiddler crab Uca sindensis in the Abi estuary near Bandar Abbas on the Persian Gulf. Data were collected from September 2007 to August 2008 in order to cover a wide range of ecological conditio...

On the organization of individual differences in sexual behavior

SYNOPSIS. Research on the sexual differentiation of mating behavior has impeded progress in our understanding of the proximate bases of individual differences in two ways. First, by viewing variation as categorical rather than continuous, and second, by not placing sufficient emphasis on the fact that males and females differ genetically in many vertebrates, environmental contributions to indiv...

Sexual differences in exploration behavior in Xenopus tropicalis?

The two sexes of a species often differ in many ways. How sexes differ depends on the selective context, with females often investing more in reproductive output and males in territory defense and resource acquisition. This also implies that behavioral strategies may differ between the two sexes, allowing them to optimize their fitness in a given ecological context. Here, we investigated whethe...

Human sex differences in sexual psychology and behavior.

Because age and sex constitute the only distinct anatomical and physiological morphs (types) of the human species, universal sex differences ought to be expected. According to Darwinian theory, the most numerous sex differences are likely to be found in the domains of sexuality and reproduction. We first briefly review the basic model of the adaptationist program of modern Darwinian psychology....

Race and Gender Differences and the Role of Sexual Attitudes in Adolescent Sexual Behavior