2018-04-16

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TED-Ed

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From lemurs to lizards, ants to amphibians, sharks to chickens, hundreds of animals "play dead" as a survival tactic. But how and why do animals do this? Tierney Thys explains how this curious behavior, known as tonic immobility or TI for short, can be used as a defense or offense.

Lesson by Tierney Thys, animation by Stretch Films Inc.

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