Hi, thanks but I´ve already found it! I found an article about ECG in bearded dragons and in the appendix there were parameters for Green iguana :-). So thank you! But if you have some interesting article about Iguana´s heart (I ment like PQRS - amplitudes, durations, if they have SV wave and so on, but I´m interested in many other reptile secrets ;-)) I´d be really grateful :-) Thanks ;-)