An Animated GIF (Graphics Interchange Format) file is a graphic image on a Web page that moves - for example, a twirling icon or a banner with a hand that waves or letters that magically get larger.

https://tctechcrunch2011.files.wordpress.com/2015/08/safe_image.gif

https://cdn2.scratch.mit.edu/get_image/user/9310802_60x60.png?v=1431868020.69

http://polkacafe.s3.amazonaws.com/articles/thumbs/ti_725_3054.2484001441.gif

http://forums.accuweather.com/uploads/post-13204-1436654775.gif

http://i.kinja-img.com/gawker-media/image/upload/aaq630bw1g6v7jkcuiat.gif

http://45.media.tumblr.com/6eec77e355fe50bae424291fd8c58622/tumblr_me7ucl8kO61rf089no1_500.gif

http://images.techhive.com/images/article/2013/11/mario_gif_big-100067702-large.gif

http://i.kinja-img.com/gawker-media/image/upload/xpdwgraukenclzo6izam.gif

https://cdn1.vox-cdn.com/thumbor/lhtJH63qGfm6RBa5tTffm3-gaEk=/cdn0.vox-cdn.com/uploads/chorus_asset/file/3614716/explosion2.0.gif

https://s-media-cache-ak0.pinimg.com/originals/9f/59/3a/9f593a32600abc8ef71ce6a3c985078d.gif

https://49.media.tumblr.com/10671d69beb0cbd137b636d8ceb74cd2/tumblr_mrgqcn25T51r6xtmjo1_500.gif

https://s-media-cache-ak0.pinimg.com/originals/a9/ef/29/a9ef290db81d7c116ff3f234ccb6549f.gif