Why Is Blue So Rare In Nature?
Adults EcologyAmong living things, the color blue is oddly rare. Blue rocks, blue sky, blue water, sure. But blue animals? They are few and far between. And the ones that do make blue? They make it in some very strange and special ways compared to other colors. In this video, we'll look at some very cool butterflies to help us learn how living things make blue, and why this beautiful hue is so rare in nature.
What is the tragedy of the commons? - Nicholas Amendolare
Adults EcologyIs it possible that overfishing, super germs, and global warming are all caused by the same thing? In 1968, a man named Garrett Hardin sat down to write an essay about overpopulation. Within it, he discovered a pattern of human behavior that explains some of history's biggest problems. Nicholas Amendolare describes the tragedy of the commons.
Mexico Earthquake Hit My School
Adults EcologyMarie was a victim of the Central Mexico (Puebla) Earthquake on September 19th 2017. While so many lost their lives, were injured, or lost their homes and property, Marie was lucky - her house didn't crumble, just a few cracks here and there, and her loved ones and family were all okay, and obviously, she didn't die. But it was one of the scariest moments in her life and one she will never forget. This is a scary story, a scary TRUE story.
Most hurricanes that hit the US come from the same exact spot in the world
Adults EcologyAs Hurricane Irma bears down on the East coast, Floridians may be wondering where all the hurricanes come from, and why they all follow a similar course. In fact, Irma, Harvey, and Jose were all born on the other side of the Atlantic, off the coast of Africa, and the Sahara desert may be to blame.
The amazing ways plants defend themselves - Valentin Hammoudi
Adults EcologyPlants are constantly under attack. They face threats ranging from microscopic fungi to small herbivores like caterpillars, up to large herbivores like elephants. But plants are ready, with a whole series of internal and external defenses that make them a less appealing meal - or even a deadly one. Valentin Hammoudi explains some of the fascinating ways that plants defend themselves.
When is water safe to drink? - Mia Nacamulli
Adults EcologyWater is refreshing, hydrating, and invaluable to your survival. But clean water remains a precious and often scarce commodity - there are nearly 800 million people who still don't have regular access to it. Why is that? And how can you tell whether the water you have access to - whether from a tap or otherwise - is drinkable? Mia Nacamulli examines water contamination and treatment.
Why wildfires are necessary - Jim Schulz
Adults EcologyOur early ancestors relied on lightning to cause forest fires, from which they could collect coals and burning sticks to help them cook food and clear land. Yet, it wasn't just humans who benefited from these natural phenomena. Even as they destroyed trees, fires also helped the forests themselves. Jim Schulz outlines the benefits of wildfire.