Ask a
Teacher
Listen &
Explore the world of biology and meet some of our biologists. Here you can learn about the living world and find out what is so cool about biology that someone would do it for a living. Pick a story to read or listen to one of our podcast shows filled with guest scientists who share their experiences and passion for discovery.
Little water, sweaty, hot summer days and frigid winter nights make the desert an uninviting place for most animals and plants. But hiding just below the surface, the desert is alive with microbes—tiny, living things too small to see without magnification.
Feather Biology
So why can't humans fly and what makes birds so special that they are able to take to the air without needing a plane or a glider? The basic answer is they have feathers and also bones that are hollow, making them light and still strong. But there is more to the story of feathers than just flying.
Send 
