Glucose (sugar) has an opposite “handed” isomer L-glucose that tastes identical and isn't metabolized as sugar, so it's safe for diabetics. Unfortunately, L-glucose costs 50% more than gold.
3
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
In Cuba, hitchhiking is encouraged and government vehicles are legally required to pick up hitchhikers.
4
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
The offspring of two sets of identical twins are legally cousins but genetically siblings.
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