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Sure, except that drosophila are animals and we have a lot more in common with them than you think, especially when looking at more primal systems. Our intrinsic immune system was discovered in fruit flies, look up the Toll pathway.

> Insects and mammals differ quite a lot.

They can still be merged in teleportation accidents.

Found Jeff Goldblum's account.

Given the amount of blue (and every other visible wavelength) light the Sun puts out it seems like evolution should have handled this by now.

It more or less has in mammals... though it's kind of swung the other way. Sunlight is required to produce Vitamin D, which it turns out is pretty darn important.

The catch is that most people don't get enough sunlight exposure to produce enough vitamin D.

I read somewhere that getting vitamin D is easier through sunlight than people think.

Of course it also depends on your pigmentation and where you live.

And time of year.

Still, you are only making an assumption. Not very scientific if you.