Exploration forges differences in identical twins

Distinctive personalities in mice related to brain development

By Puneet Kollipara, 14:08 PM May 9, 2013

Same genes, same environment, different behavior.

Identical twin mice sharing the same mazelike environment develop distinct personalities based on how much they explore their surroundings, researchers report in the May 10 Science. After death, those differences were reflected in the animals’ brains.

The study “highlights something for which we had some intuition before, but actually quantifies it,” says Fred Gage, a neuroscientist at the Salk Institute for Biological Studies in La Jolla, Calif...

Source URL: https://www.sciencenews.org/article/exploration-forges-differences-identical-twins?mode=magazine&context=4555