Sorry to rain on ur parade people, but that was here MONTHS before summoning was even heard of. When the lizards came out in the game, a few of them had those things on their necks.. from that angle in the picture u see, they look weird, but they're really just a big patch of skin that can lift of the lizard to either heat it up by grabbing the suns rays, or colling it down. PS. They exist in real life too. So, that picture was there since before 2004, when Jagex said Summoning was coming in the near future, though they never got around to it. Before Slayer was released. Before the German KB even existed. That's some really strong hinting. He said Months not years... Slayer is over 3 years old, and that monster didn't exist until after slayer was released I'm sure.