A macro image of the eye of the eastern diamondback rattlesnake (Crotalus adamanteus)?? at Melbourne Zoo (captive). Assuming I have the species right, an interesting fact is that they are classified as pit vipers because of facial pits found below and between the eye and nostril on both sides of the head. The pit is highly sensitive to infrared radiation (heat) and serves as a direction finder in locating warm-blooded prey or predators.
Captured on 15/03/2022 2:03:29 PM with a Sony ILCE-7RM4 and 150mm F2.8 G @ 150 mm, 1/40 sec at ƒ / 5.6, ISO 800

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