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<p><strong>Today's story: </strong>Monarch butterflies migrate thousands of kilometers from across the U.S. and Canada to just a few mountain forests in central Mexico. They rely on the sun, the Earth’s magnetic field, and a unique multi-generational life cycle to complete the journey. But their numbers are falling due to habitat loss and climate change.</p><p><strong>Transcript & Exercises:</strong> <a href="https://plainenglish.com/822" rel="noopener noreferrer" target="_blank">https://plainenglish.com/822</a></p><p><strong>Full lesson:</strong> https://plainenglish.com/822 </p><p>--</p><p><strong>Upgrade all your skills in English:</strong> Plain English is the best current-events podcast for learning English.</p><p>You might be learning English to improve your career, enjoy music and movies, connect with family abroad, or even prepare for an international move. Whatever your reason, we'll help you achieve your goals in English.</p><p><strong>How it works:</strong> Listen to a n...