Changes

==Skin adaptations and cutaneous appendages==

==Skin adaptations and cutaneous appendages==

*[[Snake Eye|Spectacles]] - they are clear scales over the eyes of snakes.

*[[Snake Eye|Spectacles]] - they are clear scales over the eyes of snakes.

*[[Snake Special Senses|Heat sensory pits]] (infrared-sensitive receptors) - they are deep grooves between the nares and the [[Snake Eye|eye]] of [[Pit viper|pit vipers]], [[Pythoninae|pythons]] and some [[Boidae|boas]] which allow them to 'see' the radiated heat of their prey.  These pits can also be found on the upper lip, just below the nares, termed 'labial pits'.

*[[Snake Special Senses|Heat sensory pits]] (infrared-sensitive receptors) - they are deep grooves between the nares and the [[Snake Eye|eye]] of [[Pit viper|pit vipers]], [[Pythoninae|pythons]] and some [[Boidae|boas]] which allow them to 'see' the radiated heat of their prey.  These pits can also be found on the upper lip, just below the nares, and are termed 'labial pits'.

*Rattle - it is present in some snakes and used to warn predators.  It is enlarged with each [[Snake Shedding|shed]].

*Rattle - it is present in some snakes and used to warn predators.  It is enlarged with each [[Snake Shedding|shed]].

*Gastrosteges - they are a single row of large ventral scales in snakes that aid [[Snake Locomotion|locomotion]].

*Gastrosteges - they are a single row of large ventral scales in snakes that aid [[Snake Locomotion|locomotion]].