Why are there no animals with three legs?

If "Why?" is the first question in science, "Why not?" must be a close second. Sometimes it
If "Why?" is the first question in science, "Why not?" must be a close second. Sometimes it's worth thinking about why something does not exist.

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क्या हैं 3 पैरों वाले जानवर का गुत्थी! - Why Are There No Animals With Three Legs ! – Vigyanam

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