Why Don't Sheep Shrink In The Rain?
Adults NatureGetting wet isn't REALLY what makes wool shrink; it merely exacerbates the friction between the wool fibers, which is stronger in one direction than another, so when agitated in the washer or dryer, they migrate in relation to each other in a process called "felting."
Why Is Blue So Rare In Nature?
Adults NatureAmong 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.
How do fish make electricity? - Eleanor Nelsen
Adults NatureNearly 350 species of fish have specialized anatomical structures that generate and detect electrical signals. Underwater, where light is scarce, electrical signals offer ways to communicate, navigate, find, and sometimes stun prey. But how do these fish produce electricity? And why? Eleanor Nelsen illuminates the science behind electric fish.
How long will human impacts last? - David Biello
Adults NatureImagine aliens land on Earth a million years from now. What will these curious searchers find of us? They will find what geologists, scientists, and other experts are increasingly calling the Anthropocene, or new age of mankind. David Biello explains how the impacts that humans have made have become so pervasive, profound, and permanent that some geologists believe we merit our own epoch.
Baby Animal Rescue // 60 Second Docs
Adults NatureFor the last 15 years, Joseph Keter has been rescuing, caring for and returning injured and abandoned animals -- mainly orphans whose mothers have died -- to the wild. From lions to cheetahs and buffalo to gazelle, Joseph has cared for some of Africa's most iconic animals. His days may be long and difficult, but when it's life or death for baby animals on Kenya's Lake Naivasha, it's all worth it.
Ocean Defense Kid | Connor Berryhill // 60 Second Docs
Adults NatureConnor Berryhill was only 5 years old when an underwater encounter with an endangered monk seal set him on a path to take care of the world's most vulnerable creatures. Now 11, he's taken his small-scale activism big and started his own nonprofit, MicroActivist. Their mission: to connect youth with projects to protect the ocean -- and save our planet's oceans and seas.
Why do we harvest horseshoe crab blood? - Elizabeth Cox
Adults NatureDuring the warmer months, especially at night during the full moon, horseshoe crabs emerge from the sea to spawn. Waiting for them are teams of lab workers, who capture the horseshoe crabs by the hundreds of thousands, take them to labs, harvest their cerulean blood, then return them to the sea. Why? Elizabeth Cox illuminates the incredible properties of horseshoe crab blood.