Milk Is Just Filtered Blood

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Apr 232018
 

Did you know that milk is just filtered blood that female mammals create to provide vital nutrients to their babies? And yes, that even includes cow milk, the one we all buy at the grocery store. The cocktail is composed of water, sugar, fat, and protein, that are extracted from the mom’s blood by her mammary glands. Watch this video by the good folks over at Minute Earth to learn more about how milk is created!



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Do You Have A Maximum Heart Rate?

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Apr 162018
 

SciShow answers the question… Does your heart rate have an upper limit and could you ever reach it?