There are intermediate fossils lol, humans are a simple example. You said carbon dating proves Earth is only 600 years old, but then say it doesn't work??? And that's not how carbon dating works. It's not how much carbon is there, it's the ratio of carbon 14 to 15. They literally teach this in basic physics for 15/16 year olds. You clearly have no idea what carbon dating even is if you're thinking about carbon dating from the atmosphere, you take a sample of a carbon based material and find the ratio of C-14 to C-15. Please don't talk about things you have no idea about. Once again, a quick google search on your part could have saved both of us some time. And the Anguillan Iguanas are a new species (evolved from Green Iguanas), this has been observed rather recently, it's not pseudo science, it's a simple fact. And why make the argument at all about observation being proof? Even if it hadn't been observed (it has like I said, but hypothetically) when has anything from creationism or any holy book been 'observed'. Did you know Noah lived to the age of 950? Idk about you, but that seems a bit more unbelievable than adaptation due to changes in environment throughout thousands of years.