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Three Amazing Cup and Ball Illusions

Cups and ball tricks are one of the oldest and most well-known illusions for good reason. They leave a lot of room for variation and – when done correctly – are still amazing and baffling to watch.

Here are a few brilliantly executed routines:

Tommy Wonder’s audience is only inches away and still can’t follow his sleight of hand:

Ricky Jay weaves wonderful storytelling into his routine:

But maybe the most amazing thing of all would be if the illusionists told – and in fact showed you – exactly how they did the trick and you still couldn’t follow or comprehend it. That’s what Penn & Teller do here:

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Bone Broth 101
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Whether you drink it on its own or use it as stock, bone broth is the perfect recipe to master this winter. Special thanks to the Institute of Culinary Education

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Why Can Parrots Talk and Other Birds Can't?
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If you've ever seen a pirate movie (or had the privilege of listening to this avian-fronted metal band), you're aware that parrots have the gift of human-sounding gab. Their brains—not their beaks—might be behind the birds' ability to produce mock-human voices, the Sci Show's latest video explains below.

While parrots do have articulate tongues, they also appear to be hardwired to mimic other species, and to create new vocalizations. The only other birds that are capable of vocal learning are hummingbirds and songbirds. While examining the brains of these avians, researchers noted that their brains contain clusters of neurons, which they've dubbed song nuclei. Since other birds don't possess song nuclei, they think that these structures probably play a key role in vocal learning.

Parrots might be better at mimicry than hummingbirds and songbirds thanks to a variation in these neurons: a special shell layer that surrounds each one. Birds with larger shell regions appear to be better at imitating other creatures, although it's still unclear why.

Learn more about parrot speech below (after you're done jamming out to Hatebeak).

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