India, May 20 -- Animals in cities are consistently bolder, more aggressive, more explorative and more active than their non-urban counterparts.

Boldness was observed to have the strongest increase in cities.

Urban environments may favour risk-taking individuals better able to tolerate humans, compete for scarce resources and navigate human-altered landscapes.

Animals living in urban areas are much bolder, more aggressive and more explorative compared to their non-urban counterparts, according to a new study.

The findings published in the Journal of Animal Ecology were based on an assessment of 133 species, including birds, mammals, amphibians, reptiles and insects. The authors accessed 80 studies to use phylogenetically controlled me...