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How female chimps call off the competition

Chimpanzee females employ copulation calls strategically to minimize social competition, particularly with other females. This behavioral adaptation allows them to secure the protective support of high-ranking males, thereby reducing risks associated with female-female competition.

SourcePLOS·JournalPLOS ONE·DateJun 17, 2008

Family ties that bind: Maternal grandparents are more involved in the lives of their grandchildren

A recent study found that maternal grandparents were more likely to maintain daily or weekly contact with their grandchildren than paternal grandparents. The research suggests psychological mechanisms rooted in evolutionary history, where women are always related by maternity, making family ties through the mother more significant.

SourceNewcastle University·JournalEvolutionary Psychology·DateDec 18, 2007

How did our ancestors' minds really work?

The study reveals that 1- and 3-year-old children, as well as great apes, prefer a place-based strategy to remember hidden items, while humans reassess this preference with age. This suggests that some evolved cognitive strategies are masked early on in human development.

SourceMax-Planck-Gesellschaft·JournalCurrent Biology·DateSep 6, 2006

Falling in love in three minutes or less

Researchers used HurryDate speed dating events to study human mating behavior, finding that physical appearance and personality traits dominate decision-making. Contrary to expectations, financial factors like income and education played a negligible role in attraction.

SourceUniversity of Pennsylvania·JournalEvolution and Human Behavior·DateFeb 11, 2005

Linguistics may be clue to emotions

A recent linguistics study found that people from different cultures use varying numbers of emotion words, with a greater emphasis on negative emotions. The researchers discovered that older adults tend to have more diverse vocabularies when describing their emotional experiences.

SourcePenn State·JournalJournal of Multilingual and Multicultural Development·DateJan 20, 2005

The poetics of babytalk

Babytalk plays a crucial role in infants' development of temporal arts, such as literature and music. Depriving babies of poetic elements like alliteration and assonance may hinder their ability to appreciate these arts later on. Researchers argue that babytalk is more significant than previously thought.

SourceUniversity of Alberta·JournalHuman Nature·DateFeb 4, 2004

When it comes to jealousy, men and women may come from the same planet after all

A recent study published in Personality and Social Psychology Review by Christine Harris questions the evolutionary theory of sex differences in jealousy. She finds that men and women view sexual and emotional jealousy in a similar light, with many studies failing to account for individual variability and cultural influences. Harris su...

SourceUniversity of California - San Diego·JournalPersonality and Social Psychology Bulletin·DateMay 27, 2003