雅思听力

🎧 Listening Transcript

In today's lecture, we'll discuss the impact of urbanization on local wildlife. A recent study in Melbourne tracked the behavior of possums over five years. Surprisingly, the researchers found that possums in urban areas had a higher survival rate than those in rural forests, despite facing more threats from traffic and pets. The key factor was food availability: urban possums accessed a more consistent supply from gardens and waste bins. However, their diet was less diverse, leading to nutritional deficiencies in some individuals. The lecture emphasizes that while cities can support certain species, we must consider the long-term health consequences of these adaptations.