As a group, carriers of recessive disorders are slightly less healthy and have a reduced chance of having offspring. This disadvantage is greatest for carriers of a recessive gene for intellectual ...

For the first time, an international study has deciphered the genome of the population of Brazil. Published in the journal ...

No single treatment can increase natural progesterone ... Although dietary choices can affect ovulation, influencing progesterone levels, little research supports the use of specific foods ...

Some voters have written into ABC Your Say blaming immigration levels for Australia's housing crisis. But experts say the picture is complicated.

This accumulation of traits continues until the result is a new species. The process is called Natural Selection. Evolution is incremental. Anyone can read the writings of Wallace or Darwin (I ...

higher population level. Additionally, if even a small portion of the the herd is diverted by this proposed road, it can significantly affect a remote community’s harvest if those were the only ...

Before we get started, a quick note—this article includes the results from the first-ever Natural Selection Tour Ski event. If you're hoping to avoid spoilers and would rather watch the replay, click ...

The entire natural Devils Hole pupfish population is located inside Nevada's Death Valley National Park Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013.