I have a dragon in my backyard.

You can’t see it because it’s invisible.

You can’t detect it using infrared sensors or anything else because it’s
magic.

Its wings doesn’t cause the grass to flatten because it’s super-small.

You can’t feel the flames of its breath because it’s so tiny the heat
dissipates harmlessly.

It’s biting you right now but you can’t feel the microscopic teeth.


by Carl Sagan, Pulitzer Prize winner
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Do I have a dragon in my backyard or not? Or should I worry that my neighbor’
s dumping toxic waste over the fence