Ghosting is when someone terminates a relationship by ending communications abruptly and without explanation. Whether or not you'd consider ghosting someone might have a lot to do with how you view relationships in general.

Bamboo is the world’s fastest growing plant thanks to the cell elongation process it shares with all grasses and its unique cell wall layering adaptation, allowing it to shoot up to 100 ft (30m) in just 8 weeks.

A primer on exponential and logistic growth, with epidemics as a central example

Have you experienced embarrassing voice cracking? Most people have, and there’s a lot of reasons why you might be affected. From illness, stress, and good old puberty.

Over our lifetimes, our bodies undergo a series of extraordinary metamorphoses: we grow, experience puberty, and many of us reproduce. Behind the scenes, the endocrine system works constantly to orchestrate these changes. Emma Bryce...

True Pines (conifer trees in the genus Pinus) are often confused with other members of the Pinaceae family like Picea (Spruces), Abies (Firs), Pseudotsuga (Douglas-firs) or Larix (Larches). So is very likely that your Christmas tree is...

You may not think much about moss, but it has a hidden super power, and it's been used to save countless lives.

Stars blowing up is a surprisingly common occurrence, but who would have thought to search the bottom of the ocean if you were trying to study them?!

Population ecology is the study of groups within a species that interact mostly with each other, and it examines how they live together in one geographic area to understand why these populations are different in one time and place than...

Being a teenager is hard. Especially when hormones play their part in wreaking havoc on the teenage body and brain. In this episode, Hank explains what is happening to the during the angsty-time. ----------

In which John Green teaches you about the massive immigration to the United States during the late 19th and early 20th century. Immigrants flocked to the US from all over the world in this time period. Millions of Europeans moved to the...

Your body produces more than a liter of mucus every day, and when you're sick, it can be hard to miss. But what exactly is mucus? And what does it do, besides making you miserable? Katharina Ribbeck reveals the mysteries of this...

This video is a collaboration with Aatish Bhatia about how to see the COVID-19 tipping point - we present a better way to graph COVID-19 coronavirus cases using a logarithmic scale in "phase space" - plotting the growth rate against the...

In this video Paul Andersen explains how forests and rangelands are managed to provide renewable lumber and cattle. Threats to renewability of forests include old-growth logging, forest fires, and tree plantations. Threats to renewable...

Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and the their secret is also their defining trait: conductive tissues that can...

Paul Andersen explains how ecosystems interact with biotic and abiotic factors. He explains and gives examples of food chains and food webs. He shows how limiting factors eventually leads to logistic growth. Real data from Yellowstone...

New ReviewThis fascinating program helps students understand the ways plants grow throughout their life cycle. Colorful video footage shows how seeds germinate, and plants develop throughout their lives. The video correlates to the Next Generation...

The Chandra X-ray Observatory has discovered a black hole growing at a record pace. Credit: NASA/CXC/A. Hobart

You might think that once drugs, devices and medical procedures are shown to be effective, they quickly become available. You might also think that those shown not to work as well as alternatives are immediately discarded. Reasonable...

A number of Republican health care policy proposals that seemed out of favor in the Obama era are now being given new life. One of these involves Medicare, the government health insurance program primarily for older Americans, and is...

American healthcare spending is still WAY higher than pretty much all other industrialized countries. But not that long ago, things were different. The US didn't spend nearly as much in this realm. What changed? Demographics? More...

China is the world’s second-biggest economy, prompting concerns about China overtaking the United States or EU sooner than previously thought. But if you look at the long term picture and apply a more Asian perspective—China’s...

Brazil’s dynamic society has fueled the rise of new economic activity and a rapidly changing business environment, one that has become increasingly attractive to international investors and corporations seeking to gain a foothold in...

This summer, China's frankenstein-like, hybrid economy turned on its creator, forcing the government to take unprecedented action to prevent its collapse.