Many genes that mediate sexual reproduction, such as those involved in gamete recognition,
diverge rapidly, often as a result of adaptive evolution. This widespread phenomenon …

Today’s children and adolescents are immersed in both traditional and new forms of digital
media. Research on traditional media, such as television, has identified health concerns and …

Molecular studies of speciation in birds over the last three decades have been dominated by
a focus on the geography, ecology, and timing of speciation, a tradition traceable to Mayr's …

Media, from television to the “new media” (including cell phones, iPads, and social media),
are a dominant force in children’s lives. Although television is still the predominant medium …

Infants, toddlers, and preschoolers are now growing up in environments saturated with a
variety of traditional and new technologies, which they are adopting at increasing rates. …

… Wendy Sue Swanson, MD; Wendy Sue Swanson, MD … Moreno, MSEd, Jenny Radesky,
Wendy Sue Swanson, MBE, Jeffrey Hutchinson, Justin Smith; The Power of Play: A …

Play is essential to the social, emotional, cognitive, and physical well-being of children
beginning in early childhood. It is a natural tool for children to develop resiliency as they learn to …

Mammalian fertilization exhibits species specificity, and the proteins mediating sperm-egg
interactions evolve rapidly between species. In this study, we demonstrate that the evolution of …

Sequence comparisons of genomes or expressed sequence tags (ESTs) from related
organisms provide insight into functional conservation and diversification. We compare the …

Rapid evolution driven by positive Darwinian selection is a recurrent theme in male
reproductive protein evolution. In contrast, positive selection has never been demonstrated for …