They're much calmer in behaviour. A cat or a dog, being warmblooded, is always moving, always in motion what makes a very short shutter speed totally necessary if you want to get clear shots of them. You will find reptiles, on the other hand, much more often just quietly lying around, sunbathing and resting (that doesn't mean that they're boring, though. An attacking snake in motion or a dashing crocodile can be just as amazing and unexpected (and hard to catch) as a playing dog)
I love the look of snake eyes. Had a meeting with a king cobra once, back in Thailand, eye to eye - and that creature just cut me down to size by simply staring at me. No one can tell that snakes are dumb or don't think. This cobra was thinking. I know, emotional talking with no scientific arguments whatsoever here but i just saw it in its eyes. I know what i saw.
Snake nerd babbling here. Feel free to ignore my shite.
I totally agree with you fellow snake nerd ,Thailand huh wow ! King Cobra ... Eye to Eye Holy ... There was once this little black racer snake in my backyard acting all cobraish & I just knew there was some intelligence there when he was looking at me. Of course he wasn't a rough 20 feet long and venomous ... LOL Speaking of eyes your Cillian Murphy Art that you did a while back is no doubt amongst the best I've seen on Da. Ok now I'm rabbling here