The Appalachian Trail. A 2,143-mile-long path stretching from Springer Mountain, Georgia, to Mt. Katahdin, Maine. 71.4 miles of the Appalachian Trail, locally known as the AT, run through the Great Smoky Mountains National Park. Most backpackers take a week to hike this rugged section of the trail, but one Smoky Mountains park ranger, Dave Worth, …
Tag: environment
Living Things Change: Crash Course Kids #41.1
Hopefully by now, you realize that our world is always changing. Land forms change, weather changes, even molecules change. With all of that change going on, living things had better be able to keep up. And they do. When the world around them changes, living things change too, sometimes in a big way. So what …
Why Humanity Destroyed Itself
One day, if human civilisation ever wipes itself out, aliens or one of our successors will cast an eye on our ruined planet, and ask themselves what ever happened to. Their answer might look a little like this. The root cause won’t be the specific catastrophe, conflict or devastation that eradicates us; the problem will …
Ecological Succession: Nature’s Great Grit
Captioning is on! To turn off, click the CC button at bottom right. Follow the amoebas on Twitter (@amoebasisters) and Facebook! We love Disney movies and we have to say—Lion King is one of our favorites. And like a lot of Disney movies, it has a happy ending. We’re not going to give spoilers just …
Charles Darwin’s Idea: Descent With Modification
Professor Dave here, let’s talk about Darwin. For millennia, humans have wondered just how we got here. Throughout most of human history, any answer to this question was the exclusive domain of religion, but when modern science came about, it wasn’t bashful in having a go at this question, too. Remarkably, science came to answer …
Biomagnification and the Trouble with Toxins
Captions are on! To turn off, click CC button at bottom right. Follow us on Twitter (@AmoebaSisters) and Facebook! Have you ever heard the song “Big Yellow Taxi?” It’s one of our favorites. It was originally written and recorded by Joni Mitchell back in the seventies, and there are lots of singers who have their …
Selection in the Wild
Hi my name is Ryan Martin And I’m a postdoctoral researcher at the National Institute for Mathematical and Biological Synthesis My research is in the field of evolutionary ecology Which is interested in understanding how aspects In the environment can cause evolution through The process of natural selection in wild populations This is an important …
