Tadpoles look more like fish than frogs, they have long finned tails and breathe through gills.

Ed Cox from San Francisco invented the pot scrubbing S.O.S. pads in 1917. His wife came up with the name, which stands for "Save Our Saucepans."

Montreal has an underground city, which has over 2,000 shops and 26 kilometres of walkways. This is the largest underground network for any city.

AMAZING FACTS