Man's Best Friend

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Across
  1. 3. However the relationship began, nowadays, it is clearly (8)_____ to both humans and dogs.
  2. 5. Dogs have very powerful noses and they have a great (3)_____ for smelling things.
  3. 6. Dogs have many skills, which they use to help humans in a(n) (2)_____ of ways.
  4. 8. However, we do know that iver thousands of years, the wolf has slowly changed into the (7)_____ dog we have today.
Down
  1. 1. This makes them good at finding lost people and also (4)_____ items in people's luggage.
  2. 2. Dogs and humans have had a(n) (1) _____ for thousands of years.
  3. 4. How and why humans and dogs first began interacting is still (6)_____.
  4. 7. The most important thing about dogs is that they are very (5)_____, rarely failing to do as they are told.