Although social behavior can have a strong genetic component, it can also result in
selection on genome structure and function, thereby influencing the evolution of the genome …

In vertebrates, sexual differentiation of the reproductive system and brain is tightly
orchestrated by organizational and activational effects of endogenous hormones. In …

Despite the relatively recent divergence time between domestic dogs (Canis familiaris) and
gray wolves (Canis lupus), the two species show remarkable behavioral differences. Since …

Comparative studies of species differences and similarities in the regulation of courtship
behavior afford an understanding of evolutionary pressures and constraints shaping …

Species diversity in experimental neuroscience research provides a vital resource.
Addressing contemporary questions using nontraditional model systems (ie, studies of …

Although the distribution of catecholamine‐synthesizing cells has been described for a
variety of taxa, less is known about the functional significance of particular populations in …

Although changes in gene expression have long been recognized as critical to evolutionary
processes, the extent of natural polymorphism in gene expression has yet to be assessed …

Karyotypes of Leposoma show a clear differentiation between species of the scincoides
group from Brazilian Atlantic Forest (2n= 52, without distinctive size groups of chromosomes) …

Important questions remain about the long-term survival and adaptive significance of
eukaryotic asexual lineages. Numerous papers dealing with sex advantages still continued …

We describe polymerase chain reaction primers and amplification conditions for 13
microsatellite DNA loci isolated from two bisexual species of whiptail lizards Aspidoscelis …