How to recognize Ontario's only venomous
snake . . .
The massasauga rattlesnake
is not a very large snake - adults are usually 50 to 80 cm long (about as
long as your arm). The most distinguishing characteristic of this snake
is the rattle at the end of its tail - you won't find any others in Ontario
with one! The massasauga is also the only snake in Ontario that has
vertical pupils in its eyes (like a cat), but you have to be a little close
to see them!
© Brent Huffman, Toronto Zoo