Tortoises can feel human emotions like optimism and positivity, a study has found.
Tests have shown red-footed tortoises experience long-term moods, similar to those of mammals and birds.
A team of researchers at University of Lincoln, UK, studied 15 red-footed tortoises using a cognitive bias test, commonly used on mammals and birds.
It assessed how they reacted to ambiguous situations, analysing how they felt and found tortoises living in "enriched environments" were more optimistic and positive.
Subscribe here: http://bit.ly/1rbfUog
For more news, analysis and features visit: www.bbc.com/news
#Tortoises #BBCNews
