A creation of Dr. Gavin Miller Robot Snake can work independently like a real snake. Each joint of the robot snake has its on CPU, a motor and battery. This creation no doubt show a scientific reality. Such robotic snakes can have many applications in the daily life which include but not limited to exploration of the tree forests, exploration of the no go areas and these can also be used for war purpose. A news item published by the Fox News on June 11, 2009 describe that Israel have developed Military Robot Snake .
Israeli defense researchers are working on a robot snake that can sneak through cracks and into buildings to send back sound and video of enemy movements — or even plant explosives.
A video clip taken from pogpog shown below show how cool is this Robotic Snake
In an other video shown in real time by Robotics Institute Carnegie Mellon University one can see how such robot snakes can climb up
Here in this video we can see a front facing camera is also attached to the snake robot which can collect useful surrounding information. Further information about robot snake can also be obtained from the Wikipedia