In 1942, Walls described the concept of a 'nocturnal bottleneck'in placental mammals, where
these species could survive only by avoiding daytime activity during times in which …

Evidence from the early paleontological record of mammalian evolution has often been
interpreted as supporting the idea that mammals were nocturnal for most of their early …

Circadian rhythms influence most of our life activities, notably getting up and going to sleep
every day. The new edition of this book delves into the mechanisms surrounding how these …

What makes us human? How did we develop language, thought and culture? Why did we
survive, and other human species fail? The past 12,000 years represent the only time in the …

Previous research has identified morphological differences between the brains of
Neanderthals and anatomically modern humans (AMHs). However, studies using endocasts …

The global prominence of snakes in religion, myth, and folklore underscores our deep
connection to them—but why, when few of us have firsthand experience? The answer, Isbell …

Previous comparative research has attributed interspecific variation in eye size among
mammals to selection related to visual acuity. Mammalian species have also been …

Most modern mammals, including strictly diurnal species, exhibit sensory adaptations to
nocturnal activity that are thought to be the result of a prolonged nocturnal phase or …

Kinship, religion, and economy were not" natural" to humans, nor to species of apes that had
to survive on the African savanna. Society from its very beginnings involved an uneasy …

The mammalian brain is composed of numerous functionally distinct structures that vary in
size within and between clades, reflecting selection for sensory and cognitive specialization …