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CNN
Cnn: Patient Gets 1st Totally Implanted Artificial Heart
In July 2001, a major advancement in medical science was made. Find out about the first completely implanted artificial heart that totally replaced the function of the human heart. Read about what the AbioCor is and view a video on the...
Khan Academy
Khan Academy: Tonicity Comparing 2 Solutions
Find out how tonicity is determined by ions that don't move across membranes and how it affects movement of water.
PBS
Pbs Teachers: Scientific American: The New Zoos: Doctor Fish
Investigate the evolution of the heart and circulatory system in mammals by studying the anatomy of hearts in other animals. Create models of the hearts of fish, amphibians and mammals.
Other
Digital Frog: Frog Circulation
A digital diagram from Digital Frog of the circulatory system of a frog. Very nice, and very fake since it is not a real frog.