Explore the Biological Bases of Behavior Test. Prepare with engaging flashcards and multiple choice questions, each featuring explanations. Start practicing today!

Multiple Choice

Which Russian scientist is known for domesticating foxes to study tameness?

Shaping behavior through selective breeding shows how tameness can emerge when the right traits are favored across generations. Dmitry Belyaev, a Russian geneticist, carried out a landmark fox domestication project starting in the 1950s in Novosibirsk. By repeatedly breeding the foxes that were the most docile toward humans, he created a line that became unusually tame over generations. Along with friendliness, these foxes began to show physical changes commonly seen in domesticated animals—things like more social expressions, floppier ears, and varied coat colors—illustrating how selecting for a behavioral trait can bring about associated anatomical changes. This work demonstrates how quickly domestication can proceed when behavior is the target of selection, highlighting the genetic basis of tameness and its broader effects. Other scientists mentioned contributed to different areas: Nikolai Vavilov focused on crop genetics and centers of origin for cultivated plants; Gregor Mendel laid the foundations of genetics through pea-breeding experiments; Ivan Pavlov is known for studying conditioned reflexes in dogs. None of them conducted the fox taming project.

Shaping behavior through selective breeding shows how tameness can emerge when the right traits are favored across generations. Dmitry Belyaev, a Russian geneticist, carried out a landmark fox domestication project starting in the 1950s in Novosibirsk. By repeatedly breeding the foxes that were the most docile toward humans, he created a line that became unusually tame over generations. Along with friendliness, these foxes began to show physical changes commonly seen in domesticated animals—things like more social expressions, floppier ears, and varied coat colors—illustrating how selecting for a behavioral trait can bring about associated anatomical changes. This work demonstrates how quickly domestication can proceed when behavior is the target of selection, highlighting the genetic basis of tameness and its broader effects.

Other scientists mentioned contributed to different areas: Nikolai Vavilov focused on crop genetics and centers of origin for cultivated plants; Gregor Mendel laid the foundations of genetics through pea-breeding experiments; Ivan Pavlov is known for studying conditioned reflexes in dogs. None of them conducted the fox taming project.