In this episode of Crash Course Botany, we’ll peek into the future of botany. We’ll consider current plant mysteries, bridges between Western science ... in the soil on Earth.

In our inaugural episode of Crash Course Zoology ... the chaos of life on Earth, zoologists, ecologists, and other “ists” rely on taxonomy, the branch of science dedicated to naming ...

“Serpent Mound is the largest serpent effigy built anywhere on the planet Earth,” O’Grady said. “Serpent Mound is built up on ...

Expert stargazers later discounted any risk of a crash ... the science behind it all: "The odds of an unseen small asteroid deflecting Apophis enough to direct it into a collision with Earth ...