Fairy-wrens are more likely to help their closest friends but not strangers, just like us humans
- Written by: Ettore Camerlenghi, PhD student, Monash University
Jenna Diehl, Author providedMultilevel societies are among the most complex societies known in nature. They are organised like Russian nesting dolls – individuals belong to family groups, which belong to clans, which belong to tribes.
At each level, the relationships between these social units (individuals, families, clans and tribes) are...



















