Stuff You Should Know

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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Humanity’s created a lot of neat things over the eons and starting in the 1940s, the UN created an agency focused on preserving those things for the whole world and future people. But that mission is in danger of becoming only about branding and money.
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There’s a kind of bird that lots of people think is a real jerk. And it kind of is. But in the brown-headed cowbird’s defense, it’s just evolved that way. Find out why it has such a bad reputation among bird lovers in this Short Stuff.
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