Reproduction is a critically important event in every animals' life and in all vertebrates is
controlled by the brain via the hypothalamic-pituitary-gonadal (HPG) axis. In many species …

Social animals live in complex physical and social environments requiring them to attend
and rapidly respond to social and environmental information by changing their behavior. A …

Seasonal rhythms in reproduction are conserved across nature and optimize the timing of
breeding to environmental conditions favorable for offspring and parent survival. The …

Sexual differentiation of the mammalian nervous system has been studied intensively for
over 25years. Most of what we know, however, comes from work on relatively non-social …

From primates to bees, social status regulates reproduction. In the cichlid fish Astatotilapia
(Haplochromis) burtoni, subordinate males have reduced fertility and must become …

Rapid effects of social interactions on transient changes in hormonal levels are known in a
wide variety of vertebrate taxa, ranging from fish to humans. Although these responses are …

In many vertebrates, social interactions regulate reproductive capacity by altering the activity
of the hypothalamic–pituitary–gonadal (HPG) axis. To better understand the mechanisms …

Abstract Nearly 100 years ago, Charles Elton described lemming and vole population cycles
as ecological models for understanding population regulation in nature. Yet, the …

Dif f erent anim al spec ies experien ce lif e somewhat dif f erently be cause their sensory
systems are re sponsive to unique perce ptual wor lds and, cor re sponding ly, their moto ra …

Reproduction is the biological process by which new individuals are produced by their
parents. It is the fundamental feature of all known life and is required for the existence of all …