In this article, we will take a look at the 15 countries with the negative population growth in the world. If you want to skip our discussion on the population trends, you can go directly to the 5 ...

The United States has enjoyed some level of population growth virtually every year for more than a century. But that doesn't mean every state is always growing in lockstep. Here's a for-instance: ...

Population ecology is the study of how populations — of plants, animals, and other organisms — change over time and space and interact with their environment. Populations are groups of organisms of ...