The presence of altruistic behavior is most likely due to kin selection, a theory maintaining that
A) aggression between sexes promotes the survival of the fittest individuals.
B) genes enhance survival of copies of themselves by directing organisms to assist others who share those genes.
C) companionship is advantageous to animals because in the future they can help each other.
D) critical thinking abilities are normal traits for animals and they have arisen, like other traits, through natural selection.
E) natural selection has generally favored the evolution of exaggerated aggressive and submissive behaviors to resolve conflict without grave harm to participants.
Stablizing Selection
Variation in the rate of evolution as a function of the strength of selection, assuming genetic drif
The deer mouse and the African elephant represent extremes among mammals of r versus K selection.
Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo
The presence of large areas of methane hydrate
Sexual Selection: Birds of Paradise