First evidence for photosynthesis in insects

This is not unprecedented in animals, green sea slugs are capable of making use of the chloroplasts in the algae they eat.

http://en.wikipedia.org/wiki/Elysia_chlorotica

Just curious: why isn't the making of vitamin D by the human skin called photosynthesis?

Thanks. This article is also clear about the differences: http://en.wikipedia.org/wiki/Photochemistry

They corrected the title: "Photosynthesis-like process found in insects": "The original headline of the piece incorrectly implied that the researchers had discovered evidence of photosynthesis in aphids. In fact, photosynthesis requires carbon dioxide to be 'fixed' and turned into organic compounds."

God says... knowledge of God: I speak this to your shame.

15:35 But some man will say, How are the dead raised up? and with what body do they come? 15:36 Thou fool, that which thou sowest is not quickened, except it die: 15:37 And that which thou sowest, thou sowest not that body that shall be, but bare grain, it may chance of wheat, or of some other grain: 15:38 But God giveth it a body as it hath pleased him, and to every seed his own body.

15:39 All flesh is not the same flesh: but there is one kind of flesh of men, another flesh of beasts, another of fishes, and another of birds.

15:40 There are also celestial bodies, and bodies terrestrial: but the glory of the celestial is one, and the glory of the terrestrial is another.

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God says...

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