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300tube TED-Ed   28 August, 2017
 559,625

download youtube mp4 : The amazing ways plants defend themselves - Valentin Hammoudi

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Plants are constantly under attack. They face threats ranging from microscopic fungi to small herbivores like caterpillars, up to large herbivores like elephants. But plants are ready, with a whole series of internal and external defenses that make them a less appealing meal — or even a deadly one. Valentin Hammoudi explains some of the fascinating ways that plants defend themselves. 

Lesson by Valentin Hammoudi, directed by Juan M. Urbina Studios.

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