Lamarck called his theory, the theory of Acquired Characteristics. Lamarck's Theory of Inheritance of Acquired Characteristics has been disproved. This was done in two major ways. The first is by experiment. We have seen through many real examples and observations that changes that occur in an animal during life are not passed on to the animal's offspring.
Answer:
Oils repel water, so it helps these animals keep their fur dry, which helps them stay warm.
