南安大略有毒蛇。
Most types of venomous snakes prefer warmer climates, making Canada unfriendly to all but the hardiest species. These varieties include:
The northern pacific rattlesnake – also known as the western rattlesnake, in British Columbia.
The massasauga in the Georgian Bay area of Ontario.
The prairie rattlesnake in southern Saskatchewan and Alberta
The desert nightsnake, a rare species found only in the southern Okanagan valley of British Columbia. Though considered venomous, it is only potent enough to kill small prey.