<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Why do you think are blueberries not bright blue?
<|assistant|>
Blueberries are not bright blue because the color of the fruit depends on the type and amount of pigments present in its skin. The pigment anthocyanin, which gives the blue color, is only present in the skin of blueberries, so when the fruit is picked the skin is what is seen. Over time the skin can start to rot, change the texture and the blue color can lessen, making the berry look more of a light purple or gray.