This will probably get deleted as it's naughty.
I don't know how to make an image larger on Demotix, but you might be interested to note the difference between these two addresses........
//static1.demotix.com/sites/default/files/imagecache/a_scale_large/2400-4/photos/1376649854-london-zoo-tiger-streak-for-dwindling-sumatran-tiger-numbers_2435674.jpg
and
//static1.demotix.com/sites/default/files//2400-4/photos/1376649854-london-zoo-tiger-streak-for-dwindling-sumatran-tiger-numbers_2435674.jpg
