There’s a lot of confusion over what organic means, and food with that label might not be as healthy or environmentally friendly as you think.

Every day, humans literally flush a valuable resource down the toilet: nitrogen. But there are some animals that have figured out a way to recycle the extra nitrogen in their bodies by moving it not to their livers, but to their mouths!

This live-action video program is about the pseudo-ruminant digestive system. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and...

This live-action video program is about the ruminant digestive system. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and colorful,...

This live-action video program is about the avian digestive system. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and colorful,...