How can you tell two species apart? It’s not always simple. In this episode of Crash Course Biology, we’ll learn about speciation—a process that can happen over millions of years, or within a single generation. Along the way, we’ll...

Howcast - Learn the basics of claymation from Joe Vena of the Children's Museum of the Arts in this stop motion animation tutorial from Howcast.

Howcast - Learn how to clip your cat's nails from board-certified veterinary behaviorist Dr. E'Lise Christensen, DVM in this Howcast video.

Pupil outcome: I can explore how Lady Macbeth’s feelings of guilt change over the course of ‘Macbeth’. Key learning points: - Lady Macbeth appears to be suffering from a psychological disorder that causes her to sleep-walk - This...

Paul Andersen explains the concept of coevolution. He begins with an analogy comparing the relationship of humans to technology with those of coevolving species. He then discriminates between coevolution and convergent evolution. He...

Paul Andersen reviews the major components of the homeostasis. He explains how organisms respond to abiotic and biotic factors in their environment with feedback loops. He shows how responses can be behavioral or physiological.

In This Episode, Tyler Teaches Us About Alternate Interior Angles - Transversals

Faustson Tool a client of Manufacturer’s Edge (the MEP Center in Colorado and part of the MEP National Network), operates a 16,000-square-foot facility with more than 20 highly skilled employees and is owned and operated by Alicia...