TED Talks
Ted: Ted Ed: Why Do We Pass Gas?
Flatulence is a daily phenomenon. In fact, most human beings pass gas 10-20 times a day (yes, that includes you). Where does your bodily gas come from? This learning module takes us on a journey into the intestines, shedding light on how...
National Health Museum
Access Excellence: Graphing Frog Respiration
This is a lesson plan for a science lab recording and graphing the respiration of frogs. Includes background information for teachers, preparation information, and detailed explanation of the activity.
Biology Pages
Kimball's Biology Pages: Vertebrate Lungs
This personal page defines and compares the gas exchanges by the lungs of amphibians, reptiles, birds, and mammals. Offers detailed images.
TED Talks
Ted: Ted Ed: Why Isn't the World Covered in Poop?
Each day, the animal kingdom produces roughly enough poop to match the volume of water pouring over Victoria Falls. So why isn't the planet covered in the stuff?
Khan Academy
Khan Academy: Pressure Regulation and Fluid Dynamics of the Respiratory System
This passage explains the pressure regulation and fluid dynamics of the human respiratory. Complete a five-question quiz over the information in the passage.
Other
Quantum Conservation: Amphibian Index
A good overview and index of all the classes and species of amphibians, including sub-classes, orders, and characteristics.
San Diego State University
San Diego State: Avian Respiratory System and Anatomy
Resource provides two good diagrams of a bird's respiratory system.