I believe the answer is: Lorenz
Lorenz's finding indicates that a certain set of behaviour is already exist ever since an organism is born without having to be learn. The act of the goslings to chase the first object they see is a form of biological impulse to understand the environment around them.
The experiment involving newborn goslings, who have an innate tendency to follow the first moving object they see after being hatched, was developed by Lorenz.
