Even without brains, jellyfish learn from their mistakes

What’s the weirdest thing you learned this week? Well, whatever it is, we promise you’ll get an even weirder answer if you ask. pop science‘s hit podcast. The weirdest thing I learned this week Every other Wednesday morning on Apple, Spotify, YouTube, and wherever you listen to podcasts. This is your new favorite source for the weirdest science-related facts, figures, and Wikipedia editors have spiraled into. popular science can be convened. If you liked the story in this article, you’ll probably like this show too.

Fact: Jellyfish can learn from their mistakes even though they don’t have brains

Rachel Feltman

Before we talk about how jellyfish learn, we have to talk about the fact that jellyfish don’t have a brain. Perhaps that’s not surprising if you think of the human brain as a prototype organ.

However, the brain is actually just a collection of nerve cells that control the body within the body. What these aggregates look like varies greatly, especially among invertebrates, where they are often very simple structures called ganglia. However, most of them have some kind of centralized nerve center. Jellyfish are some of the only animals that completely lack this structure. Others include sea cucumbers, sea urchins, corals, and other marine creatures known for deep intellectual exploration.
In a new study, researchers have shown that Caribbean box jellyfish do not require a brain and can actually learn from experience. Some scientists say this could mean that individual neurons can learn. To learn more about this experiment and its effects on our own cognitive abilities, check out this week’s episode.

Fact: The popularity of Hollywood quicksand peaked in the 1960s, but how does it work in real life?

Written by Jess Boddy

Quicksand was featured throughout the movie. It was the biggest fear of 10-year-olds in the 90s. One day you’re just living your life and walking around and BAM!!!!!! You get sucked into quicksand, sometimes up to your waist, sometimes completely. And we all know the classic instruction: “Do not move!” The more you move, the faster you will sink.

And while we may best remember Quicksand for movies like princess bride and A story that never ends, In fact, it was most popular as a storytelling device in the 1960s. And it seems no coincidence that his ’60s culture outside of movies was also steeped in quicksand, from the Vietnam War to policies dubbed the “quicksand model,” as one Slate writer has argued. . And as the decades passed, quicksand fell out of fashion, along with bell-bottoms and tie-dye, but it continued to scare all of us who were kids in the ’80s and ’90s.

But does real-life quicksand disappear into the ground in less than a second, like in the movies? Does it really sink quickly when you struggle? Listen to this week’s episode to hear the verdict, backed by both real-life experience and court cases. Nature Research and Mythbusters.

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