Biological fitness trumps other traits in mating game

When a new species emerges following adaptive changes to its local environment, the process of choosing a mate can help protect the new species' genetic identity and increase the likelihood of its survival. But of the many ...

Mice in a 'big brother' setup develop social structures

How does a social animal – mouse or human – gain dominance over his or her fellow creatures? A unique experiment conducted by Dr. Tali Kimchi and her team in the Weizmann Institute's Neurobiology Department provides some ...

Sex offenders are on the move

Convicted sex offenders continue to move freely within communities, including in restricted areas, despite laws designed to limit their movements. A new study, by Alan Murray from Arizona State University and colleagues, ...

Bonobos' unusual success story

Mate competition by males over females is common in many animal species. During mating season male testosterone levels rise, resulting in an increase in aggressive behavior and masculine features. Male bonobos, however, invest ...

page 4 from 5