
A Black-necked Garter Snake (Thamnophis cyrtopsis) ambushing frogs
Before taking this photo, I had watched this snake catch and eat a Canyon Treefrog (Hyla arenicolor). You can see the bulge just above where the body turns down in this photo. When it assumed this position, it had its eyes on more nearby frogs. A moment or two later it lunged for another one, but missed, and retreated with a sheepish look.

''Thamnophis cyrtopsis'', the blackneck garter snake, is a species of garter snake of the genus ''Thamnophis''. It is native to the southwestern United States, Mexico and Guatemala, and can be found in a wide range of different habitats, often near water sources.
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