As eukaryotic cells started to form, eukaryotic traits may have emerged in early cells about one billion years before the ...

Whole-genome duplications are rare evolutionary events in which all the chromosomes and genes of a species are doubled. This supplies new genetic material to the gene pool and can provide an ...

New research reveals ancient humans in southern Africa lived in isolation for nearly 100,000 years. This led to unique ...

The jumpy parasites have followed our ancestors around for at least 25 million years, adapting along with us through major upheavals. By Carl Zimmer Along our evolutionary journey from monkey-like ...

Dogs were the first of any species that people domesticated, and they have been a constant part of human life for millennia.

Consistency and Heterogeneity of Microsatellite Instability (MSI) Status in Paired Biopsy and Surgical Specimens of Colorectal Cancer: A Necessity for MSI Reassessment After Treatment? Incorporating ...

The two subspecies split about 20,000 years ago. But since then, they may have interbred more often than Smithsonian ...

A few years ago, Junius Nottingham Jr. was on a family vacation in Florida with his wife, his daughter and his son, Jeremy. Jeremy was 28 years old, over 6 feet tall and athletic. He had followed his ...