Which university conducted the famous mask experiment proving that
Chapter 1

The rise of the feather brains

Chapter 2

Inside the crow's toolkit

Chapter 3

The dark legend of the crow

Chapter 4

Myth vs. reality around the world

Ch 2 · Inside the crow's toolkit
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mankai Neurological research reveals the complex structure of the crow brain

3h ago

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Crow's Clever Eye
BETA

mankai Match evolutionary traits to figure out the origin of a dark, famous crow proverb.

3h ago

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The bird brain breakthrough

mankai These birds lack a cerebral cortex, using a dense cluster of neurons called the nidopallium to perform complex cognitive tasks.

3h ago

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Quiz

What specific region of the crow's brain contains dense neuron clusters responsible for high intelligence?

3h ago

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Quiz

Which primate has a brain-to-body weight ratio most similar to that of a common crow?

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We survive by learning from dangers we have never personally faced.

3h ago

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Crafting tools in New Caledonia

mankai These birds strip leaves and bend forked twigs in the South Pacific.

3h ago

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Quiz

What unique tool-making behavior do New Caledonian crows exhibit that is unmatched by other wild non-human animals?

3h ago

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Quiz

On which island group do wild crows famously craft hook-shaped tools from twigs?

3h ago

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Fun Fact

Crow memory: Crows can communicate to other crows about a dangerous human, spreading the word across miles without the others ever meeting you.

3h ago

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Quiz

Which university conducted the famous mask experiment proving that crows recognize and remember hostile human faces?

3h ago

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Quiz

For at least how many years can a crow remember a specific human face that previously threatened it?

3h ago

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Glossary
corvid (noun)
Any bird of the family Corvidae, which includes crows, ravens, jays, and magpies. In New Caledonia, these birds shape hooked twigs to extract beetle larvae from tree cavities.

3h ago

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Quiz

What is the primary evolutionary purpose of a crow 'funeral' gathering?

3h ago

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Quiz

What is the scientific term for the noisy, defensive behavior crows use to drive away predators?

3h ago

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Gossip

Would you trust a crow to solve a puzzle for you?

3h ago