Monty Python’s Flying Circus musical 'Spamalot' hopes to spread the silliness with US tour

Eric Idle sometime gazes up into the heavens and wonders about something if we ever make contact with aliens: Will they have ...
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Can a turtle tuck its head all the way inside its shell?

Turtle shells evolved over the course of 300 million years, but self-defense wasn't the initial driver, researchers think.