http://www.dailymail.co.uk/sciencetech/article-2330392/The-REAL-angry-Birds-Archaeologists-aggresive-giant-birds.html
http://www.iflscience.com/plants-and-animals/puzzling-life-cycle-of-the-dodo-has-finally-been-explained/
https://blog.nationalgeographic.org/2015/07/31/cave-art-may-show-what-happened-to-giant-lemurs/
https://www.theguardian.com/environment/2012/feb/19/extinct-birds-hume-walters