Question

Belyaev (a Russian scientist) bred foxes in captivity that demonstrated which of the following?

1) hand rearing was important for their behavioral development
2) adults and offspring showed a correlation in their "friendliness" behavior
3) domesticated dogs and foxes could interbreed
4) none of the above

Answer 1

The correct answer is that adults and offspring of the bred foxes showed a correlation in their "friendliness" behavior.

Step-by-step explanation:

The correct answer is 2) adults and offspring showed a correlation in their "friendliness" behavior.

Belyaev's experiment involved breeding foxes in captivity and selectively breeding for friendly behavior. Over several generations, the foxes bred in captivity started to exhibit behavioral traits similar to domesticated dogs, including friendliness towards humans. This experiment provided evidence that friendly behavior can be selectively bred in animals and that there is a correlation between the behavior of adult foxes and their offspring.

Thus, the correct statement from the options given is that adults and offspring showed a correlation in their "friendliness" behavior.