<n>Os Retirantes</n> (1944), an oil on canvas by Brazilian artist <n>Cândido Portinari</n>.

A time-lapse of the slime mold <n>Physarum polycephalum</n> from the <n>Wyss Institute at Harvard University</n>.

Installation view of <n>Hélio Oiticica</n>'s <n>Relevos espaciais</n> sculptures at <n>Witte de With</n>, 1992. Photo by <n>Bob Goedewaagen</n>.

<n>Metaesquema</n> (1958) by artist <n>Hélio Oiticica</n>.

The collage <n>Runaway</n> by artist <n>Sakina Al-Sharif</n>.

<n>Metaesquema No. 4066</n> (1958) by Brazilian artist <n>Hélio Oiticica</n>, an example of <n>Concrete Art</n>.

<n>Cangaceiro</n> (1951), an oil on canvas painting by artist <n>Candido Portinari</n>.