Did you know? Pit vipers Nov 29 2007
Pit vipers, as their name suggests, have a heat-sensitive pit on either side of their head. These pits are extremely sensitive to changes in temperature, being covered with a temperature sensitive membrane.
These organs can help the pit viper sense the presence of warm-blooded animals, which is ultimately useful at night when these reptiles most often hunt for small animals such as frogs and lizards. They often form ‘S’-shapes with their body, enabling them to strike at any time.
See the white-lipped green pit viper (Trimeresurus albolabris) in Thung Salaeng Luang National Park, Thailand in the Earth-Touch clip, Pit viper in the bushes.
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