A pig one
What did you first see when you looked at this picture? I'm sure it's just you - you should have seen three pigs.
Rabbit and Duck
A rabbit facing right and a duck facing left. This is the original you will find in college books, it is a good example of a so-called rival-schemata ambiguity.
Swan and Squirrel
A very unknown but beautiful example of ambiguous animals. It's a swan facing left and a squirel facing right.
Cat or couple
This couple dining at a table has the shape of a cat's head when looking at the smaller picture.
Valley of the Tiger
From a distance this is the painting of a tiger. In close-up it's a grassy landscape with some small rivers and two tigers. This is one of the best ambiguous images around because it works so well on both levels.
In the midst of life we are in death
The title refers to a funeral sentence of an Anglican burial service. Although the drawing looks like a skull from a distance, this is actually a naked woman bending down. The combination of barely dressed women and death is a popular, recurring theme in art.
