Among 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 can many stupid things combine to form smart things? How can proteins become living cells? How become lots of ants a colony? What is emergence?
Nearly 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.
2016 I took a plane from Vienna, Austria to California to hike the Pacific Crest Trail – a 2650 miles footpath from Mexico to Canada. This is my 5-month journey – with all ups and downs.
For 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.
A new scientific model has discovered what actually happened to the earth after the asteroid impact that killed the dinosaurs.