Who's in charge? Who's got food? The brain region responsible for learning and memory is bigger in social bee queens who may have to address these questions than in solitary queens, report scientists at the Smithsonian Tropical ...
Plants & Animals
Mar 23, 2010
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(PhysOrg.com) -- Scientists trying to understand how the brains of animals evolve have found that evolutionary changes in brain structure reflect the types of social interactions and environmental stimuli different species ...
Plants & Animals
Jun 23, 2009
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For the past 2 million years, the size of the human brain has tripled, growing much faster than other mammals. Examining the reasons for human brain expansion, University of Missouri researchers studied three common hypotheses ...
Evolution
Jun 22, 2009
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New research from two evolutionary biologists questions the recent finding that sociality has played a key role in the evolution of larger brain size among several orders of mammals (Social Brain Hypothesis). Their sweeping ...
Evolution
May 25, 2009
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Stereotypes often paint a partial or false picture of an individual or group.
Social Sciences
Apr 30, 2009
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(PhysOrg.com) -- University of Notre Dame biologist Sunny Boyd's research is a little like "Match.com" for amphibians. Say you're a female tree frog looking for a mate--how do you choose among a number of potential suitors?
Plants & Animals
Mar 24, 2009
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(PhysOrg.com) -- Colonies of social insects such as ants and bees could collectively make decisions using mechanisms similar to those used in primate brains, according to new research from the University of Bristol.
Feb 25, 2009
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Researchers have found that nerve cells in the hippocampus region of the brain encode complex information on numerous characteristics of other individuals in the same social group.
Plants & Animals
Jun 27, 2024
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Montanans know spring has officially arrived when grizzly bears emerge from their dens. But unlike the bears, the contentious debate over their future never hibernates. New research from my lab reveals how people's social ...
Plants & Animals
Apr 16, 2024
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Repeated failures to reproduce make fruit flies stressed and frustrated, which in turn makes them less resilient to other types of stress, Julia Ryvkin at Bar-Ilan University and colleagues report in PLOS Genetics.
Plants & Animals
Jan 18, 2024
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