Sex, mating systems, inbreeding, and outbreeding / Nickolas M. Waser -- Theoretical perspectives. Theory and data pertinent to the relationship between heterozygosity and fitness / Jeffry B. Mitton -- ...

The first look at a threatened rattlesnake species' recent genetic history suggests that inbreeding necessitated by limited habitat may not be as detrimental as theory would predict it to be. The ...

Sharing the name of a legendary dwarf in J. R. R. Tolkien's classic fantasy novel "The Hobbit," a Neanderthal now known as Thorin wandered the Earth up to 42,000 years ago. Now a new study in the ...

People have taken many steps in recent decades to help the Pacific Northwest's endangered killer whales, which have long suffered from starvation, pollution and the legacy of having many of their ...

The majority of dog breeds are highly inbred, contributing to an increase in disease and health care costs throughout their lifespan, according to new research. Dog breeds are often recognized for ...