Species: Cnemidophorus tigris (Western whiptail)
ANIMAL SIZE - Snout-vent length: 8.6 cm Mass: 17 g
SPEED - of locomotion: 343 cm/sec of treadmill: 238 cm/sec
TEMPERATURE: 35-40 degrees C
Time between successive images of video clip: 0.008 sec
Comments: Right lateral view of lizard running bipedally very near maximal sprinting speed on a horizontal treadmill.
Distance between vertical lines in the background grid is 10 cm.
The tread surface is moving opposite to the direction of running. Consequently, movement of the lizard relative to the background is slower than relative to the tread surface.
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