Reptiles of The Territories

Yes there really is a reptile in the tundra!

The Common or Red-sided garter snake is found in the southern portion of the Northwest Territories. It is the widest ranging reptile species in North America, and their distribution extends further north than any other reptile.

Common (Red-sided) Garter Snake Thamnophis sirtalis

• Range: NWT, British Columbia to Manitoba, south through USA 
• Most abundant and widespread snake in Canada 
• Widest range of any North American snake; found as far north as Ft. Smith, NWT 
• Melanistic (black) snakes with white chins have been found in Ontario and Nova Scotia 
• Can tolerate cool weather, and may be active year round in the southern part of their range 
• Up to 8,000 individuals may occupy some winter dens 
• Travel many kilometres from winter den to summer feeding areas 
• Frequently seen in moist vegetation 
• Eat frogs, toads, salamanders, worms, mice, small fish 
• Often form mating balls, with up to 100 males intertwined around a single female 
• Young remain together for a few weeks after hatching 
• Known lifespan up to 14 years 

Range map and photo courtesy of CARCNET