Great tits change their traditions for the better

Researchers at the University of Konstanz and Max Planck Institute for Animal Behavior in Germany have found that birds are able to change their culture to become more efficient. Populations of great tits were able to switch ...

Animal aggression depends on rank within social hierarchies

Humans and animals alike constantly size up one another. In the workplace, a new employee quickly learns which coworkers are the most respected—and therefore hold more power. Big brothers boss around little brothers. In ...

Alpha animals must bow to the majority when they abuse their power

Many animal groups decide where to go by a process similar to voting, allowing not only alphas to decide where the group goes next but giving equal say to all group members. But, for many species that live in stable groups—such ...

Chronic stress causes genetic changes in chickens

How can stress in animals be measured? Scientists from Uppsala University and elsewhere have now found that what are known as epigenetic biomarkers could be used to detect long-term exposure to stress in commercially raised ...

Did prehistoric women hunt? New research suggests so

For a long time, it was assumed that hunting in prehistoric societies was primarily carried out by men. Now a new study adds to a body of evidence challenging this idea. The research reports the discovery of a female body, ...

New study finds earliest evidence for mammal social behavior

A new study led by paleontologists at the University of Washington and its Burke Museum of Natural History & Culture indicates that the earliest evidence of mammal social behavior goes back to the Age of Dinosaurs.

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