The milk industry produces in excess of 840 million tons of products each year. Why do humans drink so much milk? And given that all mammals lactate, why do we favor certain types of milk over others?
Jonathan J. O’Sullivan describes how milk is made.
Lesson by Jonathan J. O’Sullivan, animation by TED-Ed.
View full lesson: http://ed.ted.com/lessons/the-science…
Categories: Gr. 11-12 Biology
https://youtu.be/N9LC-3ZKiok For several centuries, people though diseases were caused by wandering clouds of poisonous vapor. We now know that this theory is pretty ridiculous, and that diseases... read more
Categories: Gr. 11-12 Biology
https://youtu.be/U52g6ZlR1W0 In the second video of our two-part series on HIV and AIDS, we look at the challenges that have kept scientists from developing a cure, and the treatments that have... read more
Categories: Gr 9-10 Science
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