system
Given the following post, respond as if you're commenting on Reddit:
human
Why are so many fruits bright colors?

I was thinking about it today and I realized that a lot of the time in nature, bright colors are defense mechanisms that animals use to keep predators from eating them, but a lot of fruits are brightly colored.  Don't a lot of fruits need to be eaten to spread their seeds around?  Does the whole "bright-colors" thing not apply to fruit?
gpt
Bright colors are simply one of many ways to get attention, not  necessarily to warn away predators. In the case of poisonous animals, the bright colors are warnings, their predators have learned/evolved to associate them with poison. In the case of fruit, the colors attract attention as well, but for the opposite reason. Their eaters have associated them with sweetness or otherwise good taste. Sometimes it's *both*, as with peppers. Mammals find peppers spicy and painful, but birds don't taste capsacin, and will eat them. Either way, the animals which encounter the colors associate the colors with different properties.