Humans have evolved much longer lifespans than the great apes, which rarely exceed 50
years. Since 1800, lifespans have doubled again, largely due to improvements in …

One of the earliest recognized forms of sexual conflict was infanticide by males, which
imposes serious costs on female reproductive success. Here I review two bodies of …

Observations of chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) provide
valuable comparative data for understanding the significance of conspecific killing. Two …

Humans are unique in that they expend considerable effort and ingenuity in disposing of the
dead. Some of the recognisable ways we do this are visible in the Palaeolithic archaeology …

Chimpanzee and hunter-gatherer intergroup aggression differ in important ways, including
humans having the ability to form peaceful relationships and alliances among groups. This …

African primates are naturally infected with over 40 different simian immunodeficiency
viruses (SIVs), two of which have crossed the species barrier and generated human …

Demographic data on wild chimpanzees are crucial for understanding the evolution of
chimpanzee and hominin life histories, but most data come from populations affected by …

Respiratory viruses of human origin infect wild apes across Africa, sometimes lethally. Here
we report simultaneous outbreaks of two distinct human respiratory viruses, human …

The epic story and ultimate big history of how human society evolved from intimate chimp
communities into the sprawling civilizations of a world-dominating species If a chimpanzee …

Human societies are examined as distinct and coherent groups. This trait is most
parsimoniously considered a deeply rooted part of our ancestry rather than a recent cultural …