This interbreeding between species left an indelible mark that remains present in our current DNA. Between 50,500 and 43,000 years ago, Homo sapiens and Neanderthals shared a unique moment in history.

A few hundred millennia later, about 60,000 to 70,000 years ago, the ancestors of modern non-Africans followed a similar path out of Africa and began interbreeding with these other hominin groups.

For years, Yellowstone National Park was home to two distinct bison herds, each with its own breeding patterns.  But new ...

A new round of genetic analysis has concluded that there is just one interbreeding bison population in Yellowstone National ...

The profusion of breeds today -- at least 150 -- reflects intense, purposeful interbreeding of dogs in the past 150 years. At the same time, the entire history of dogs and their relationship with ...

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They say that members of one species couldn't become so different from other individuals through natural variation that they would become two separate non-interbreeding species. One of the most ...

Researchers from the Texas A&M College of Veterinary Medicine and Biomedical Sciences (VMBS) have discovered that bison in Yellowstone National Park — the only group of American bison that has ...