- Ravens Have Social Abilities Previously Only Seen In Humans http://www.iflscience.com/plants-and-animals/ravens-have-social-abilities-previously-only-seen-humans 5 comments science
- Ravens have social abilities previously only seen in humans. http://phys.org/news/2014-04-ravens-social-abilities-previously-humans.html 151 comments science
- Ravens have social abilities previously only seen in humans: they can recognize change in social order outside their communities http://arstechnica.com/science/2014/04/ravens-have-social-abilities-previously-only-seen-in-humans/ 6 comments science