Why are blue whales so enormous? – Asha de Vos

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Blue whales are the largest animals on the planet, but what helps them grow to the length of a basketball court? Asha de Vos explains why the size of krill make them the ideal food for the blue whale — it’s as if the blue whale was made to eat krill (and krill was made to be eaten by the blue whale).

Lesson by Asha De Vos, animation by Cognitive Media.