Like how does fruit know to be sweet to persuade us to eat it and shit the seeds somewhere else? How do chilies know that only birds are immune to spice of capsaicin so that they will eat it and take the seeds further when they fly somewhere else? Did they plan this or was it an accident?
In: 2
Natural selection
The sweet fruits got eaten, and the seeds spread, causing those plants to thrive, and reproduce, and so on
the ones that were bitter didn’t get eaten, and therefore couldn’t spread and thrive and eventually died out.
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