Is algae the secret to feeding our growing world? Plus, new evidence for a sixth mass extinction that occurred even earlier than the Big Five. And some prescient thoughts on democracy from fifty years ago, courtesy of the creator of Charlie Brown.

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Links:

• Is it time to start eating algae? (National Geographic)
• Scientists Uncover Evidence of What May Be Earth's First Mass Animal Extinction (ScienceAlert)
• Geobiologists shine new light on Earth's first known mass extinction event 550 million years ago (ScienceDaily)
• Charles Schulz shared thoughts on democracy with 10-year-old fan (Upworthy)
• Charles Schulz's Letter About Democracy, Discovered 50 Years Later (KQED)
• Jackson Bird on Twitter

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