Yellow Eyelash Viper, Corcovado National Park, Costa Rica
As I mentioned in a previous post, I saw four different eyelash vipers on the recent trip to Costa Rica — two yellow and two green. You can clearly see the “eyelashes” on this guy. They are actually raised scales above the eyes that are thought to aid in camouflage by breaking up the snake’s outline as it hides among the foliage. I’m not quite sure I get that explanation, but that’s what the experts say. I prefer the myth that the snake will mockingly flash its lashes by winking at victims after a strike. Apparently, this isn’t physically possible, but I still like the sound of it. Either way, eyelash vipers are not aggressive by nature, but if agitated can be deadly.
Nikon D700 with Nikkor 105mm macro lens, ISO 1600, f/3.2 at 1/250th of a second