How does wombat evolve?

Can you elaborate on the evolution of the wombat? Specifically, how does it adapt to its environment over time? What are some of the key factors that contribute to its evolutionary success? How does natural selection play a role in shaping the wombat's physical characteristics and behaviors? Additionally, are there any recent studies or discoveries that shed light on the evolutionary history of the wombat? I'm particularly interested in understanding how the wombat has evolved to thrive in its unique habitat.