Anaglyph of Volvox, a spherical colonial green alga

3D stereoscopic anaglyph (view with red-green or red-cyan glasses) of Volvox, a spherical colonial green alga found in ponds and other freshwater. It is halfway between a colony and a multicellular organism.making it popular for biology classes. Here you can see the many chlamydomonas like cells with their outwardly pointing flagella creating the hollow ball. Inside are daughter colonies waiting to be released.