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 ...

Maternal instincts lead to social life of bees

The maternal care of offspring is one of the behavioral drivers that has led some bee species to have an ever-expanding social life over the history of evolution, new research out of York University has found.

Friends matter: Giraffes that group with others live longer

A research team led by Monica Bond, research associate at the Department of Evolutionary Biology and Environmental Studies of the University of Zurich (UZH), studied giraffes in Tanzania for five years. The biologists examined ...

Chimpanzee friends fight together to battle rivals

Chimpanzees, one of the closest relatives of humans, cooperate on a group level—in combative disputes, they even cooperate with group members to whom they are not related. Those involved in fights with neighboring groups ...

Supercomputer models describe chloride's role in corrosion

Researchers have been studying chloride's corrosive effects on various materials for decades. Now thanks to high-performance computers at the San Diego Supercomputer Center (SDSC) at UC San Diego and the Texas Advanced Computing ...

Guinea baboons grunt with an accent

Musical masterworks such as the Queen of the Night's Aria from Mozart's The Magic Flute, are examples of the sounds trained human voices can produce. The precondition for vocal virtuosity as well as for any spoken word is ...

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