BACKGROUND Modern reproductive behavior in most developed countries is characterized
by delayed parenthood. Older gametes are generally less fertile, accumulating and …

Social experiences are strongly associated with individuals' health, aging, and survival in
many mammalian taxa, including humans. Despite their role as models of many other …

Maternal effects are ubiquitous in nature and have been demonstrated in a wide array of
traits and taxa. In many species, the genotype of the mother is a major determinant of the …

Social dominance is a ubiquitous phenomenon among social animals, including humans.
To date, individual attributes leading to dominance (after a contest) remain largely elusive …

In many species, establishing and maintaining a territory is critical to survival and
reproduction, and an animal's ability to do so is strongly influenced by the presence and …

Pathogen virulence is highly variable within populations, and although many factors
contributing to virulence differences are known, there is still much variation left unexplained …

Transmission is a key component of a pathogen's life history, but it is often difficult to obtain
reliable ecological estimates of the dominant mode (s) of transmission and how host traits …