Though humans have certainly refined the art of skill transmission, many other animal species teach their young. For example, whales teach their children to beach safely as a hunting tactic, meerkats teach their children how to prepare their prey to eat, long-tailed macaques teach their children how to clean their teeth, and dolphins teach their children to use sponges to protect their noses as they poke around for food on the seafloor.
All of these skills are not merely instinctual. Rather, they are adaptations passed along from generation to generation, used not only to survive but to make their lives easier. Thus, skill transmission is evidently not a uniquely human ability but is found throughout the animal kingdom at different levels.