TOEFL Speaking Task 3

The concept of 'environmental imprinting' refers to the tendency of young animals to form strong, lasting attachments to the first moving object they encounter, typically their mother. This phenomenon is crucial for survival, as it ensures that offspring stay close to a caregiver who provides protection and food. Environmental imprinting is most commonly observed in birds, such as ducks and geese, where newly hatched chicks follow their mother almost immediately. The process is irreversible and occurs during a critical period shortly after birth, shaping the animal's future social and behavioral patterns.

Professor: Now, I want to give you a clear example of this, from a classic study. Researchers took a group of baby geese, right after they hatched, and they made sure the geese never saw their real mother. Instead, the first moving object they saw was a human researcher. Well, guess what? The baby geese started following the researcher everywhere—just like they would follow their mother. They even imprinted on the researcher's boots! Later, when the geese grew up, they still showed a preference for humans, and they tried to court humans during mating season. This shows that imprinting is not just about following—it's a deep, lifelong bond that overrides natural instincts. So, the key point is that the attachment forms very quickly and lasts, even if the 'mother' is not their own species.