Autostereogram of DNA or deoxyribonucleic acid. To get the 3D effect, stare at the image (preferably at a corner) with your eyes focused on infinity and wait for the image to pop out. Sometimes, you might have to blink to clear any confusion.

The DNA molecule is a double helix whose strands are linked by base pairs. DNA encodes genetic information in the sequence of these bases (adenine, guanine, cytosine, and thymine). The coiling strands are made from a sugar phosphate polymer.