Assertion: rattlesnake's pit | /r/CapableOf | detect minute differences
Facets:
Source sentences:
text: Pit vipers have "heat-sensory pits between eye and nostril on each side of head," which are able to detect minute differences in temperatures so that the snakes can accurately strike the source of heat, which is often potential prey.
text: These pits are able to detect minute differences in temperatures so that the snake can accurately strike the source of heat, which is often potential prey.