Physical Setting
Climate
Adaptations
Tucson Plants
Tucson Animals
External Resources
Physical Setting
Climate
Adaptations
Tucson Plants
Tucson Animals
External Resources
AnimalsVenomous AnimalsArthropodsFishAmphibiansReptilesBirdsMammals
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Blackneck Garter Snake (Thamnophis cyrtopsis)
blackneck garter snakeDESCRIPTION: L=up to 3.5' (106cm). Overall dark olive on upperside, lighter below. Has whitish to yellowish stripe down center of back and white stripe on each side of its body (on the 2nd and 3rd scale rows, in contrast to other, similarly-colored garter snakes). Has two dark patches at the back of the head.
NATURAL HISTORY: Semi-aquatic and carnivorous, feeding mainly on amphibians, fish, worms, and crustaceans. Gives birth to live young (6-18) during the summer. Warning: if handled, garter snakes occasionally bite and almost always leave your hands smelling awful.

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