8. Hardy Heron (8.04 LTS)
Flickr image credit: Spesh98
Herons are majestic, long-legged freshwater and coastal birds that have a distinctive silhouette when flying because they keep their necks retracted. There are many different kinds of herons, including the Great Blue Heron and the distinctive Snowy Egret.
Hardy Heron, on the other hand, was released in April 2008 and is particularly notable for being the second Long Term Support release. Ubuntu 8.04 was also the first version to include the Wubi installer on its Live CD.