Reindeer use night vision to detect vital food sources during winter, study says

A reindeer forages through heavy snow for lichen in Svalbard, Norway (Espen Bergersen/PA)

Reindeer use a special form of night vision to detect food sources, a new study has revealed.

Researchers from the University of St Andrews teamed up with Dartmouth College, New Hampshire, US, in order to conduct a study to find out why reindeers’ eyes change colour depending on the season.