Intriguing reads from around the Internets this week:

Two journalists on why the red line on chemical warfare is necessary. [Foreign Affairs]

The story of Sara Josephine Baker, a doctor who saved 90,000 inner-city children by the time she died in 1945. [NYRB]

Dan Dennett: The illusion of consciousness

“You can’t defend the humanities by declaring it off limits to amateurs.” Daniel Dennett on Leon Wieseltier on Steven Pinker. [Edge]

After twenty years, the last fascinating chapter on Chris McCandless, the subject of Jon Krakauer’s Into the Wild, seems to finally be closed. [New Yorker]

Scientists discovered an insect with biological gears in its legs. [Popular Mechanics]

An analysis of the new age of the tech intellectual, guest-starring us. [Democracy Journal]

Stop everything: NASA frog. I really hope this is real. [Instagram]