Mouse mates with similar personalities start families faster
Anxious paired with anxious, nonchalant with nonchalant — it’s the match that matters
![Mound-building Mice](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/04/sm_mouse_feat.jpg?fit=860%2C460&ssl=1)
MOUSE MATES Pairs of mice from a mound-building species bred readily — or not-so-readily — in lab setups depending on how much his personality differed from hers.
Patrick Gouat