The Anthropocene covers the last century in an unofficial geological era. An informative video considers both the pros and cons of progress. It discusses the environmental impact, changes in lifestyle, political changes, wars, and...

Some species have one gender that is r-selected while the other is K-selected.  A video focuses on growth rate and the difference between r-selected species and K-selected species. It includes a discussion of fecundity and carrying...

Living and non-living things are both a part of an ecosystem. A video begins with ecosystem interactions using biotic and abiotic factors. It also covers food webs, limiting factors, and logistic growth. As a real-world connection, it...

Along came a spider, who sat down beside her. She screamed, but RJ wouldn't smash it because spiders are a limiting factor for other insects in an ecosystem. In this video, other common limiting factors for populations are listed....

How fast is a city's population growing? Viewers of a short video learn to apply the slope formula in a population growth context. They see how to describe the population increase in people per year—a great example of math in the real...

With a human population of 7.6 billion and counting, how do we tackle the population problem? Examine the data using a video from an extensive science playlist. The resource explains why the human population began to increase rapidly,...

Did you know that, as the world's population increases, its demand for energy increases at an even faster rate? Learners watch a short video about the world's energy crisis before discussing the sustainable alternative energy sources....

Some scientists believe the earth is already over its carrying capacity for humans. The video explains what a carrying capacity is and the limiting factors to consider. It also teaches how to calculate growth rate, interpreting growth...

Combine agriculture and an increase in population density in sub-Saharan Africa and what do you get? Malaria! Young immunologists explore malaria's deadly rise to fame in a video. The narrator discusses its beginnings as a hitchhiking...

What do you get if you cross ants with ticks? All kinds of antics! Video discusses the structure of the classifications in ecology. Then it covers the ways communities can be measured before discussing an example of leaf cutter ants...

A video on logistic growth begins with a review of exponential growth before moving on to limiting factors. This naturally leads to a decrease in the growth rate and a discovery of carrying capacity. 

While 80 percent of people with West Nile Virus show no symptoms, in severe cases, it causes death by infecting the membranes around the spinal cord and brain. The video starts by making population ecology relevant. It includes density...

Learn firsthand from a young Antarctic researcher about a long-term study on the reproductive history of Weddell seals in this video segment adapted from WomenInAntarctica.com. [3:33]

What are the characteristics that define populations? What causes populations to grow or decline? In the following video you will learn how a population is a group of individuals of the same species living within a designated area at one...

In the following video, Evan Seimann, PhD, defines key terms and concepts of ecology, basic characteristics of populations, population age structures and densities, and explains the dynamics of growth models within a population. [22:59]

Richard White, of Stanford University, discusses urbanization of the American West. [2:12]

In the following interactive you will examine global population growth over the past two millennia, and see what's coming in the next 50 years.

This video describes three factors for the acceleration of change: interconnected world zones, increasing commerce and markets, and new sources of fossil fuel energy. These factors led to the modernization of society in some parts of the...

A televised overview of how we can reach sustainable development considering the continuing increase of population. Presented by the director of the Earth Institute at Columbia University, Jeffrey Sachs. [59:59] May 13, 2008

Thomas Malthus's views on population. Malthusian limits

Thomas Malthus's views on population. Malthusian limits. [8:13]

A video lecture exploring how land productivity limits the growth of a population. Video addresses how human population densities are limited by the calories that can be produced from the land. [12:59]

Businessman and philanthropist Bill Gates looks towards a future of sustainable energy and worldwide education. [3:33]

Fueled by surplus crops, agriculture led to the formation of the world's first large-scale civilizations. [10:45]