I go to Malaysia practically every year, and as you can imagine, I was bound to see a few herps visiting one of the world's megadiverse countries with more than 550 species of reptiles and 240 species of amphibians.
Here are a few highlights:
Saltwater Crocodile (
Crocodylus porosus). Floating down a river in Borneo, must've seen more than 20, stopped counting after a while. This was one of the biggest. You would think the regular sight of something like this would stop anyone from swimming in the river. You would be wrong.
My 8-year old kid goes, "Look, there's a snake!" and I'm like, "Where??!!"
"Ohhhhhh, there!" (Almost dead center in the photo above). A Bornean Keeled Pit Viper (
Tropidolaemus subannulatus).
This Wagler's Pit Viper (
Tropidolaemus wagleri), closely related to the Bornean Keeled PV above, was almost a backyard animal, saw it about a hundred yards from my parents' home. BTW, Asian pit vipers are related to your rattlesnakes, they all have these heat sensing pits between their eyes and nostrils that make them really effective hunters in the dark. These two pit viper species are unusual in that their venom is mainly neurotoxic -- viper venom is usually mainly hemotoxic.
And here's a Mangrove Pit Viper (
Trimeresurus purpureomaculatus). They're pretty sedentary, so once you see one, you know that you'll find it more or less in the same area the next time you go by. Their venom is a powerful hemotoxin, and they have a reputation among locals for being irritable, so approach with caution!
My favorite gekko, the Tokay (
Gekko gekko), one of the world's largest, reaching 15 inches in length. You hear it way more than you see it. When you do see it, on the side of a wall, for example, it's like, "Woah, that's big!" Not venomous, but aggressive when handled and has a strong bite that will draw blood.
Going underwater, found a Yellow-lipped Sea Krait (
Laticauda colubrina). Related to the cobras, its neurotoxin is pretty potent, but it's not an aggressive snake -- this one was rather curious and actually followed me for a few seconds, always at a safe distance.
One of my favorite photos of a turtle. This is a plain tuckered out Green (
Chelonia mydas).
Thanks for looking,
Kenneth