During the feeding phase of the cellular slime mold, the organism exists as an amoeba-like body of that feed on organic material, bacteria, and fungus. If food becomes scarce, some of the cells of the slime mold emit a that other slime mold cells react to and they gather into a larger, single slimy mass. This is the slug phase because the mass looks and acts much like a slug. From the slug phase, will evolve and individual spores are released that are capable of becoming new individual amoeba-like cells, and they enter the feeding phase.

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?