Mystery #3Tier 2taste and survival
Why are we born loving sweet tastes but screwing up our faces at bitter ones?
Hand a baby something sweet and watch them light up. Hand them something bitter and their whole face crumples in disgust. Nobody taught them to do this, they came that way. Why are we born adoring sweet tastes but hating bitter ones?

Your guess
Why might we be born loving one taste and hating the other?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
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