Happy Friday!
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| Back then, it was injury and infection that got us. Accidents, malnutrition, and acute diseases, such as influenza (flu) or smallpox, outcompeted tofu and pilates. |
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| Good choice, fellas: recent research found that penguins can taste salty and sour, but not sweet, bitter, or meaty flavors. They've actually lost the genes for these tastes: each of these is temperature-sensitive, and the receptors don't work in freezing cold, so penguins' evolution in the frigid Antarctic environment may have made these genes redundant. |
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| Sometimes, you just need a cookie. |
