Top 4 interesting facts about dogs

Here is the top 4 interesting facts about dogs 

1- Dogs can smell where electric current has been and human fingerprints that are a week old.

  

2- A dog has the same ecological footprint as two Toyota Landcruisers.

3- Cat originally meant ‘dog’. The word comes from the Latin catulus, a small dog or puppy.

4- The name Canary Islands comes from the Latin for ‘Isle of Dogs’.