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Feedback: Biology book only costs $23 million

Million-dollar books, Belgian asteroids, non-existent dates, and more

Plane thinking

Scraping the bottom

Gum control

Float like a butterfly…

World’s largest nests are socialist bird collectives

Enigma Number 1740

Feedback: Placebos for sale

Offbeat offshoot

Rain, rain, go away

Environment

Living on the edge of the Snake

Enigma Number 1739

Win a Kindle Fire HD in our sci-fi theme competition

Feedback: Right is wrong