A short video history of Rasputin

My 16-year-old daughter is fascinated by the Rasputin, the "Mad Monk," who was born into poverty in 1869 and became an influential and charismatic power player in Russian politics. Here's a TED-Ed video that recounts his life in five minutes.

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A crash course on the three types of mammal births

In this TED-Ed video, Kate Slabosky breaks down the differences between placental, marsupial, and monotreme mammal births. Read the rest