Cheating (biology)
Videos
Cheating is a term used in behavioral ecology and ethology to describe behavior whereby organisms receive a benefit at the cost of other organisms. Cheating is common in many mutualistic and altruisti
Stalked slime mould fruiting bodies
Fish cleaned by smaller cleaner wrasses on Hawaiian reefs
Wasp nest, with some larvae
A nest of naked mole rats
Fitness (biology)
Videos
Fitness is a quantitative representation of what tends to be favored by natural selection. Fitness can be defined either with respect to a genotype or to a phenotype in a given environment or time. Th
Herbert Spencer
Darwin's finches by Gould
Selective sweep, frequency vs time