This video explores the issue of dead zones caused by urban pollution and stormwater run-off, focusing on the Anacostia River in Washington DC. It highlights the work of a riverkeeper and a massive engineering project to reduce...

The Sun, Water Cycle, & Climate shows us how the sun produces heat to drive the water cycle. It's made clear that the water cycle continues in the absence of sunlight or heat. We learn how the two components of climate- temperature and...

Cori Cycle Lactate Recycling

We've looked at two of the three subphyla within the phylum Basidiomycota. But before we dive into all the different amazing types of mushrooms, let's get a better understanding of their life cycle, as this will provide important context...

At a time when the world faces a multitude of potential calamities ranging from climate change to water pollution and plastic pollution, to rapid population growth, the solution may well be in the sea around us. “It is water,...

This video is about different types of bears, including black bears, brown bears (grizzly bears), and polar bears. It discusses their habitats, behaviors, and the challenges they face in the wild. The video also highlights the importance...

This video is a lecture on the life cycle of viruses. The speaker starts by explaining that viruses are not true organisms because they are made up of different components and cannot replicate on their own. The video breaks down the...

Mexican Fruit Fly Texas Short

In this lesson, students will learn how to simplify positive integer powers of the imaginary unit, "i". By considering the remainder when the exponent is divided by 4, students can easily determine the simplified value. The lesson...

This program addresses many of the cycles conducted by animals including those of migration, hibernation, and patterns relating to day and night. The cycles that affect all living things are discussed including the air we breathe and the...

As Earth makes its annual trip around the Sun, we feel the impacts of its journey in the form of seasons. Our planet’s tilt in relation to the Sun determines what season we experience here on Earth. But, did you know that the Sun goes...

In this De-Natured segment of Nature League, Brit breaks down a recent scientific journal article about the beginnings of life on Earth. Article citation: G. Springsteen, J.R. Yerabolu, J. Nelson, C.J. Rhea, R. Krishnamurthy. Linked...

It can be as debilitating a physical injury', says one of the insomniacs interviewed in this film. First, we look at the causes of insomnia and how it can develop into a cycle of sleeplessness. Second, Professor Kevin Morgan explains...

A balanced carbon cycle produces as much CO2 as O2, and yet, there are 209,460 ppm of oxygen in the atmosphere and only 440 ppm of CO2 (up from the recent baseline of 275).



My first thought was that the CO2 is temporarily...

Amino Acid Metabolism the Methionine (SAM) Cycle

TCA Cycle Regulation

There is now a growing consensus among policymakers and academics that a key element to improve safeguards against financial instability is to strengthen the “macroprudential” orientation of regulatory and supervisory...

The fertility business is booming—egg freezing is being sold to a generation of men and women increasingly interested in deferring parenthood. But is optimistic marketing giving false hope? Read more