For nearly 30 years, a landmark study shaped how scientists understood the relationship between brain and body size in ...

A new analysis supports the previously overlooked "brain lag" hypothesis—the idea that, in some primate lineages, the evolution of larger body size preceded the evolution of larger brain size—while ...

Biologists group animals with similar traits into broad categories called orders. Despite their similarities, animal species in the same order can have very different average lifespans.

Supraordinal relationships of primates and their time of origin -- A molecular classification for the living orders of placental mammals and the phylogenetic placement of primates / MS Springer, WJ ...

For decades, we’ve thought that childbirth is uniquely challenging for humans, but it turns out that many other primates find ...

A surprising new study suggests the earliest primates didn't originate in tropical forests but in cold, dry parts of North ...

A monkey descending a tree trunk often keeps its head up, moving almost like a cautious climber backing down a ladder. Squirrels and many other mammals, by contrast, tend to go headfirst. That ...

Thanks to our large brains, humans and non-human primates are smarter than most mammals. But why do some species develop large brains in the first place? The leading hypothesis for how primates ...

The diet of early anthropoids – the ancestors of apes and monkeys – has long been debated. Did these early primates display behaviours and diets similar to modern species, or did they have much ...

Purchased with funds from the S. Dillon Ripley Endowment. Cover -- Cortical Evolution in Primates -- Copyright -- Dedication -- Contents -- List of figures and tables ...