that "see" well in the dark
and pit-vipers are equipped with heat-sensing pit organs that allow
them to detect warm-blooded prey by sensing the temperature difference
between their prey and the surroundings. These pit organs allow
them to hunt even in complete darkness.
pythons, the pit organs are located along their upper lips and often
the lower lips as well.
pit-vipers, the pits can be found between their nostril and eyes.
Reticulated Python - Canon EOS 30D with Tamron 90mm 1/100sec at
f8, ISO 250, Flash fired.
Wagler's Pit Viper - Canon EOS 10D with Tamron 90mm 1/200sec at
f11, ISO 100, Flash fired.