Coordinated pair bonds are common in birds and also occur in many other taxa. How do
animals solve the social dilemmas they face in coordinating with a partner? We developed …

What is the significance of a touch encoded by slow-conducted unmyelinated C-tactile (CT)
fibers? It is the so-called affiliative touch, which has a fundamental social impact. In humans …

Oxytocin (OT) is a neuropeptide known to affect social behavior and cognition. The
epigenetic modification of the oxytocin receptor (OTR) via DNA methylation stimulates …

Although oxytocin (OT) plays a role in bonding between heterospecifics and conspecifics,
the effects of OT on the formation of such interspecific social behavior have only been …

In a number of species, including humans, perceived outgroup threat can promote ingroup
cohesion. However, the distribution and selection history of this association across species …

Same-sex sexual behaviour (SSSB) occurs in most animal clades, but published reports are
largely concentrated in a few taxa. Thus, there remains a paucity of published reports for …

Investigating the underlying factors that cause differential individual responses to chronic
stress is crucial for developing personalized therapies, especially in the face of pandemics …

A key goal of the field of endocrinology has been to understand the hormonal mechanisms
that drive social behavior and influence reactions to others, such as oxytocin. However, it …

The oxytocinergic system has been suggested to make up an important part of the endocrine
basis of group cohesion. However, controlled studies in open-group settings have not been …

The reproductive cycle of female canids is distinct from that of other mammals because it
involves extended periods of proestrus and estrus, followed by obligatory diestrus and …