Although phylogeny estimation is notoriously difficult in radiations that occurred several
hundred million years ago, phylogenomic approaches offer new ways to examine …

Ancient DNA has significantly improved our understanding of the evolution and population
history of extinct megafauna. However, few studies have used complete ancient genomes to …

Morphological, molecular, and biogeographic data bearing on early primate evolution
suggest that the clade containing extant (or 'crown') strepsirrhine primates (lemurs, lorises …

THREE EARLY HOMINIDS cross a landscape covered with volcanic ash 3.6 million years
ago in an artist's rendering of the Laetoli footprint makers. A large male leads the way, while …

Sphenodontian reptiles successfully radiated during Triassic and Jurassic times, but were
driven almost to extinction during the Cretaceous period. The sparse Early Cretaceous …

A major gap in our knowledge of the evolution of marsupial mammals concerns the
Paleogene of the northern continents, a critical time and place to link the early history of …

Seven coprolites of the extinct Shasta ground sloth (Nothrotheriops shastense) were
recently discovered in the Los Angeles County Museum collection from Shelter Cave, New …

Hunter-gatherer exchange networks dampen subsistence and reproductive risks by building
relationships of mutual support outside local groups that are underwritten by symbolic gift …

Phylogenetic relationships among the dusky shrew (Sorexmonticolus) and eight related
species (S. bairdi, S. bendirii, S. neomexicanus, S. ornatus, S. pacificus, S. palustris, S …

Morphological characters are indispensable in phylogenetic analyses for understanding the
pattern, process, and tempo of evolution. If characters are independent and free of …