the dog like lassie that had 4 back legs.

[gnasher]

i saw somewhere a pic of a dog with 4 back legs , i cant remember if it was in zoo or fhm or summin it was a j-peg (i think u call them that) any one know ?

[tartanwiz]

Mutations do occur, sometimes naturally, sometimes caused by nuclear contamination. I've seen photos (in science books) of snakes with two heads, cows with 6 or 8 legs, etc. Try doing a google search on genetic mutations (photos).