New study analyzes how people choose friendships at school

Researchers from the Universidad Carlos III de Madrid (UC3M), the Polytechnic University of Madrid (UPM) and Loyola University have discovered that personality does not seem to have much influence when it comes to choosing ...

Fossil reveals leaf-eating among earliest birds

A new type of analysis of a spectacular 120-million-year-old fossil skeleton of the extinct early bird Jeholornis from northeastern China has revealed the oldest evidence for birds eating leaves, marking the earliest known ...

7 new spider species discovered in caves in Israel

In a new study conducted by researchers from the Hebrew University of Jerusalem and University of Madison-Wisconsin, seven new species of funnel web spiders (Agelenidae, Tegenaria), unique to caves in Israel, were discovered. ...

Evolution of cooperation through cumulative reciprocity

Understanding reciprocal cooperation is a key element to understanding how people work together. Whether it is friends who exchange favors, animals who exchange food or services, or nations that coordinate their policies, ...

Parasitic worms in dogs, cats may jump into people

Parasitic worms that infect companion animals such as dogs and cats are more likely to make the leap into humans than other worm species, according to new research from the University of Georgia's Center for the Ecology of ...

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