Focus animation of a radiolarian

Radiolarian
Animated GIF – focus animation. Be patient as the image loads.

The different pictures were combined into an animated GIF using the free software GIMP. To make animated GIFs, you have to open the different individual images as layers. GIMP will then place each image into a separate layer. You can then save the file as an animated GIF, and the different layers make up the individual frames.