Experiments

Question 1

Tyson’s experiment with rats

Answer 1

breeding rats to be better or worse at maze task.
showed that hereditary had a partial determination on behavior

Question 2

Tinbergen’s experiment with stickleback fish and herring gull chicks:

Answer 2

Male stickleback fish attack each other when their bellies become red
Red = releasing stimulus

Similarly, bb herring birds peck at the red peak to get food