91É«ÇéƬ

Why do carnivorous quadrupeds like cheetahs or dogs sit on their haunches, but herbivorous ones like sheep don’t?

Shelley Hinsley
Llantrisant, Rhondda Cynon Taf, UK

Is the order of mathematical operations, given the acronym BODMAS, universal or does it break down in the quantum world?

Carl Parker
London, UK

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