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Dog Tales - NOVA

Last updated

May 31, 2021
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- Compare the Anatomy of Arthropods
- Evolution and the Rock Pocket Mouse

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( https://www.pbs.org/wgbh/nova/video/dog-tales/ )

___ 1. During the brain imaging test, the pink toy shown to the dog let the dog know to expect what?

food
praise
punishment

___ 2. Dogs evolved from what wild ancestor?

wolves
coyotes
hyenas

___ 3. Forensic DNA examination found the earliest known ancestors of modern dogs occurred __________ years ago.

100,000
30,000
15,000

___ 4. The foxes in the experiment are tested by what procedure?

a human placing their hand in the cage
a scan of the fox’s brain
the reaction of the fox to other foxes

___ 5. What happened to the foxes after 10 generations of selective breeding the foxes for tolerance?

they become more aggressive
they act like dogs
they learn to bark

___ 6. Selective breeding for a behavioral trait, like friendliness, will increase the frequency of:

other traits, like fur color
offspring in a litter
early death

___ 7. The original dog probably resembled what modern breed?

poodle
german shepherd
basenji

___ 8. How many genes control the size differences of dogs?

___ 9. In the test of cooperative skills, wolves were:

more cooperative than dogs
as cooperative as dogs
less cooperative than dogs

___ 10. What makes the dog uniquely trainable?

its exceptional intelligence
its submissiveness
its bond with humans

___ 11. What hormone is responsible for the dog’s “loving” behavior?

estrogen
oxytocin
testosterone

___ 12. What condition in humans shows a mutation in the gene that controls this hormone?

Williams Syndrome
Down Syndrome
Edward Syndrome

** Overall Summary: Describe the changes that occurred during the evolution of dogs from wolves.

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