Stuff You Should Know

Psychologist Julian Jaynes came up with a stunning hypothesis in 1976, that human consciousness only developed in the last 3000 years. And he seemed to have proof in ancient texts. Scholars have been picking it apart ever since and in this classic episode we join the club.
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Of course we're talking all about maple syrup today - the tapping, the processing, the eating.
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By all rights there should be three sets of molars in your mouth. But it turns out that our skulls aren’t really set up to accommodate that many anymore. Exactly why depends on who you ask.
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In the 1970s, conservation groups around the world rose up to protect dwindling whale populations, some on the verge of extinction. They all worked under the same banner: Save the Whales! It turned out to be one of the most successful campaigns ever.
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Fever dreams can be unsettling experiences. These ramped up nightmares are vivid, detailed and only happen when the human body experiences a fever. What is it about the combination of fevers and dreams that make these night terrors so hellish? Learn all that and more in this classic episode.
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