"The idea of etnos came into being over a hundred years ago as a way of understanding the collective identities of people with a common language and shared trad

We know a great deal about roles the environment plays in shaping survival, reproductive success, and even social systems among primates. But how do primate lif

There are many different types of organisms in the world: they differ in size, physiology, appearance, and life history. The challenge for evolutionary biology

Life histories can be defined as the means by which individuals (or more precisely genotypes) vary their age- or stage-specific expenditures of reproductive eff