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To this end, they deployed functional MRI (fMRI) -- a method that is routinely used in clinical diagnostics and research, but which has never yet been utilised to study a cold-blooded reptile. "In the first step, we had to overcome a number of technical obstacles," says research team member Mehdi Behroozi. "For example, we had to adjust the scanner to the crocodile's physiology, which differs massively from that of mammals in several aspects."