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Why Are 96,000,000 Black Balls on This Reservoir?

AdultsConstructionDesignScience...
I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they're there.
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Why Is The Very Hungry Caterpillar So Dang Hungry?

AdultsAnimalsNatureScience...
Because it's hoarding protein. Not just for itself, but for the butterfly it will become and every egg that butterfly will lay. And it's about to lose its mouth... as it wriggles out of its skin during metamorphosis.
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The Real Reason Leaves Change Color In the Fall

AdultsEnvironmentNature
The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor.