WONDER #646: How Long Is a Dog Year?

Question 1 of 3

One common formula for converting dog years to human years holds that one human year equals how many dog years?

1. five
2. seven
3. nine
4. ten

Question 2 of 3

Some experts believe that the first two years of a dog’s life are approximately equal to how many human years each?

1. 7-8
2. 8-9
3. 9-10
4. 10-11

Question 3 of 3

The exact lifespan of a dog will depend upon which of the following factors?

1. breed
2. size
3. neither (A) nor (B)
4. both (A) and (B)

Check your answers online at https://www.wonderopolis.org/index.php/wonder/How-Long-Is-a-Dog-Year.