Which one of the following situations is an example of neoteny?
a. a two-year-old dog showing a threat display
b. an eight-year-old dog playing frisbee
c. a puppy urine marking its territory
d. a dog solving a problem involving insight

The correct option is B.
Neoteny is the phenomenon which is said to occur when an adult person or an animal looks like a young one or has the features of a young one. Neoteny can also be said to exist when an adult behaves in a child like manner.
Frisbee game for dogs is mostly for puppies that are just learning to catch objects with their mouths and not for adult dogs.

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