it is probably quite simple:

1. I am guessing there are a few academic studies 'proving' uvb is needed for reptiles. These were probably misrepresented and taken as fact with no qualifying information, as in yeah it's needed if you are sorely lacking in other areas of husbandry.

2. The need for uvb makes money, a lot of money. It easily adds $80-100 to every beardie sold. It's the supplies for reptiles that pet stores make money from, not the reptile, and uvb is a big part of that (hoods, bulbs). This starts back at the reptile supply companies and finishes when little Johnny and his dad are walking out with a beardie $245 later.

3. Reptile magazines are for entertainment and are financed by reptile supply companies. They have every reason not to question the need for uvb and to publish 'reports' touting it's need.

Tom

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