Dots Optical Illusions

Watch the X in the middle very closely. You will see the purple dots disappear then move your head slightly off center, the dots will reappear.
This illusion was designed by Jeremy L Hinton of Bristol, UK, and this illusion - with a lot more explanation and many other illusions as well - can be found at the web site of Michael Bach.
Tags: Dots, Illusions, Optical Illusions
The Hidden Tiger Optical Illusion
This must be the toughest optical illusion I’ve ever come across, created by American wildlife artist Rusty Rust, that shows a huge Bengal Tiger standing in a bamboo forest. Your mission now is to look for “The Hidden Tiger” in the image below, where is the hidden tiger?
Hint - Read between the line. Drop your answer in the comment box! Don’t go looking for the answer in the comment box right away, that would literally kill the fun.

image source: Mighty Optical Illusion
Updates!!!
Updates!!!
Nicki, Andre, Daniz Akay, and Leo found the answer already, I’m holding their comment for a while so that others can have the fun too. Gosh, I think I am retarded, it took me like ages to find the answer.
Tags: Magic, Optical, Optical Illusions, Rusty Rust, The Hidden tiger
