Human friendships are often characterized by preferential intentions and attitudes including trusting expectations of close social relations. Humans largely trust only their friends with crucial resources or important secrets. In this study, we investigated whether chimpanzees show a comparable pattern and extend trust selectively toward... click to read more

For centuries, European culture has been enriched by depictions in art and literature of the diverse ways in which parents can exert a long-lasting influence on their children. We now know that animal parents can have similarly lingering effects on their offspring and a relatively... click to read more

Many organisms, ourselves included, host diverse communities of microorganisms that live on and within us. Plenty of these are bacteria and with time, some adapt to live and depend so intimately with their hosts that eventually, life without them is almost impossible. However, in some... click to read more