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University of Bath


Parents seeking sex abandon 1 in 3 offspring

A study published in Journal of Evolutionary Biology found that penduline tit parents frequently abandon 1 in 3 clutches of eggs to pursue new mates. This unique breeding strategy allows for improved reproductive success but also poses risks for the young.

SourceUniversity of Bath·JournalJournal of Evolutionary Biology·DateJul 30, 2007

Finger length helps predict elementary exam results, study shows

A new study found that a child's finger length can predict their performance in numeracy and literacy tests. The researchers discovered that a higher digit ratio, indicating greater prenatal testosterone exposure, is associated with stronger numeracy skills. In contrast, a lower digit ratio is linked to higher literacy scores for girls.

SourceUniversity of Bath·JournalBritish Journal of Psychology·DateMay 22, 2007

Big-brained birds survive better in nature

A new study reveals that birds with larger brains relative to their body size have a lower mortality rate than those with smaller brains. The research supports the cognitive buffer hypothesis, which suggests that large brains enable animals to better cope with environmental challenges such as climate change and habitat destruction.

Copying nature could save us energy, study shows

A recent study compared how natural 'machines' and man-made technologies overcome similar problems, revealing that only 5% of natural machines rely on energy in the same way. Instead, insects, plants, birds, and mammals use the structure and organization of their body parts and behavior to solve problems.

SourceUniversity of Bath·JournalJournal of The Royal Society Interface·DateMay 9, 2006

'Sex' helps bacteria cope with a changing world

Researchers analyzed the history of metabolic genes acquired by E.coli bacteria over 100 million years, finding that approximately 25 genes were added through horizontal gene transfer. This mechanism allows bacteria to evolve new functions and adapt to changing environments, rather than improving existing performance.

SourceUniversity of Bath·JournalNature Genetics·DateNov 20, 2005

Childcare reduces stress levels for kids with working mums

Research suggests that longer periods of childcare can help mitigate the negative effects of a mother's low job satisfaction on her child's stress levels. Cortisol levels, a key indicator of stress, were found to be significantly higher in children whose mothers experienced emotional exhaustion or lower job satisfaction.

SourceUniversity of Bath·JournalDevelopmental Psychobiology·DateNov 20, 2005