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College student shakes up birth-order research

An Adelphi University student's research that found firstborns score higher on intelligence while younger siblings often get better grades drew some attention at a national psychologists' convention in...

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Are elder siblings helpers or competitors?

Having elder siblings decreases mortality risk in childhood, but same-sex elder siblings are associated with lower marriage rates and fewer children for their younger siblings in adulthood, according...

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For social spiders, preying together aids younger siblings

(Phys.org) —The behavior of social spiders may settle debates over the benefits of older siblings. Cornell researchers studying Australian social huntsman spiders have discovered that younger siblings...

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13-yr-old Indian girl begins microbiology master's

In a country where many girls are still discouraged from going to school, Sushma Verma is having anything but a typical childhood.

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First-borns may have higher IQ but sibling bonds are what really shape our...

First-borns are responsible, middle children are people pleasers and the youngest are attention seekers, we often hear. But scientists have failed to find any real evidence for a link between birth...

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When young bluebirds don't leave the nest

For a young male western bluebird, it might be better to live with one's parents as a helper for a year before starting a nest of one's own, according to a new study in Behavioral Ecology.

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Civil war among the mongooses—and why it's all about sexual success

The banded mongoose, a small social mammal of the African savannah, is known to be one of the most cooperative and helpful of all animals.

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