Although scientists say the woolly mouse project won’t go on indefinitely, don’t worry – there’s already people from the team waiting to adopt them Susan Young is a reporter for PEOPLE.

As a boy, Clarence Cook Little kept mice as pets, but his hobby became serious inquiry when he began studying Mendelian inheritance of mouse coat color under William Castle at Harvard University.

Scientists from Leiden University Medical Centre in the Netherlands filmed wild mice using an outdoor wheel for three years to analyse their behaviour They found the behaviour is natural even if ...