hey i have a person who says there is a DRagon with pousinouse skin that he saw on national geographic

Well the Kimono dragon's saliva (spit) has a large number of deadly bacteria in it to where it can kill you if untreated. Now the Mexican beaded lizard and Gila monster both produce venom and could be toxic to humans. And they have found many other lizards produce a venom to help with breaking down food.

http://en.wikipedia.org/wiki/Komodo_Dragon
http://en.wikipedia.org/wiki/Mexican_beaded_lizard
http://en.wikipedia.org/wiki/Gila_monster
http://en.wikipedia.org/wiki/Lizard

I hope that helped.

_________________
The victories from those skilled in warfare are not considered of great wisdom or courage, because their victories have no miscalculations
- SUN-TZU