Sibling rivalries lead to friendly finches

A new study has revealed that growing up with lots of siblings – and fighting over food – makes zebra finches more sociable in later life. In contrast, finches with fewer siblings become pickier about who they hang out ...

A solar sibling identical to the sun

An international team led by Instituto de Astrofísica e Ciências do Espaço (IA) researcher Vardan Adibekyan used a novel method to detect solar siblings. The article was published in the journal Astronomy & Astrophysics.

Later-borns choose less prestigious programmes at university

First-born children tend to choose more prestigious university programmes such as medicine or engineering than their later-born siblings. These are the findings of a new study published in the science journal Social Forces ...

Young birds less honest when competing against siblings

Chicks that are competing with siblings or whose parents are likely to die or switch partners tend to be less honest when begging for food, research into sibling rivalry in birds by Oxford University scientists has found.

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