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Image of the Day
What Made Human Brains So Big?
Ashley Yeager | May 24, 2018
Ecological challenges such as finding food and creating fire may have led the organ to become abnormally large, a new computer model suggests.
Image of the Day: Trade Deals
Staff | Jan 25, 2017
The forces of supply and demand appear influence paper wasp
populations. When more nest options are available, helper wasps work fewer hours to earn membership in a colony.
On Becoming Human
Mary Beth Aberlin | Aug 1, 2016
Some thoughts on going to the Galápagos
Opinion: Monogamy and Cooperation Are Connected Through Multiple Links
David F. Westneat, Jacqueline R. Dillard | Aug 1, 2016
Why does cooperation evolve most often in monogamous animals?
Multicellular Cooperation Curbs Cheating
Jenny Rood | Jul 1, 2016
An experimental evolution study shows that more cheaters arise when bread mold fungal cells are less related to one another.
Catherine Offord | Mar 25, 2016
A round-up of recent discoveries in behavior research
Staff | Jan 1, 2016
What can social networks among hunter-gatherers in Tanzania teach us about how cooperation evolved in human populations?
All Together Now
Mary Beth Aberlin | Jan 1, 2016
Understanding the biological roots of cooperation might help resolve some of the biggest scientific challenges we face.
Karen Zusi | Jan 1, 2016
Meet some of the people featured in the January 2016 issue of
R. Ford Denison and Katherine Muller | Jan 1, 2016
How organisms keep their biological partners from cheating