We estimated the phylogenetic relationships of brown bear maternal haplotypes from
countries of northeastern Europe (Estonia, Finland and European Russia), using sequences …

The landmass known as Beringia is an extensive region that existed during the Pleistocene
epoch and included the land bridge between present-day Siberia and Alaska, now …

Some molecular clock estimates of divergence times of taxonomic groups undergoing
evolutionary radiation are much older than the groups' first observed fossil record …

Each year for 31 years, biologist Jerram Brown has trekked into the Chiricahua Mountains of
southern Arizona to chronicle the rites of spring for a population of Mexican jays. Brown …

Sergey A. Zimov, director of the Northeast Science Station in Cherskii in the Republic of
Sakha (Yakutia), received his academic training in geophysics at the Far East State …

Over the past 40 years, species have been extending their ranges toward the poles and
populations have been migrating, developing, or reproducing earlier in the spring than …

Western Eurasia witnessed several large-scale human migrations during the Holocene,,,–.
Here, to investigate the cross-continental effects of these migrations, we shotgun-sequenced …

The cave bear spread from Western Europe to the Near East during the Riss glaciation (250
KYA) before becoming extinct approximately 12 KYA. During that period, the climatic …

We used molecular markers to study genetic relationships in a diverse collection of 85
domestic dog breeds. Differences among breeds accounted for∼ 30% of genetic variation …

The determination of the chimpanzee genome sequence provides a means to study both
structural and functional aspects of the evolution of the human genome. Here we compare …