There is growing interest in studying hormones beyond single 'snapshot'measurements, as
recognition that individual variation in the endocrine response to environmental change may …

Out-group conflict is rife in the natural world, occurring from primates to ants. Traditionally,
research on this aspect of sociality has focused on the interactions between groups and their …

In the last few decades, important advances have been made in the knowledge on the
behavioral ecology of pair-living primates such as owl monkeys (Aotus spp.). With the …

Telomere shortening has been used as an indicator of aging and is believed to accelerate
under harsh environmental conditions. This can be attributed to the fact that telomere …

Cognitive flexibility describes the ability of animals to alter cognitively mediated behaviour in
response to changing situational demands, and can vary according to prevailing …

In social species across the animal kingdom, conspecific outsiders threaten the valuable
resources of groups and their members. This outgroup conflict is recognised as a powerful …

Linking cognitive performance with fitness outcomes, measured using both reproductive and
survival metrics, of free-living animals is crucial for understanding the evolution of cognition …

Social flexibility enables individuals to switch between group and solitary living and is
suggested to be an adaptation to varying environments. Several previous studies on …

Innovative problem-solving ability is a predictor of whether animals can successfully cope
with environmental changes. These environmental changes can test the limits of animals, for …

Outgroup conflict is a powerful selective force across all social taxa. While it is well
documented that individual outgroup contests can have a range of direct and indirect fitness …