Today's story: Scientists used to rely on stickers to track monarch butterfly migration—but that only showed where a butterfly started and ended. Now, a solar-powered device called the BluMorpho is helping researchers track each step of the journey, offering new insight into one of nature’s most complex migrations.Transcript & Exercises: https://plainenglish.com/823Full lesson: https://plainenglish.com/823 --Plain English helps you improve your English:Learn about the world and improve your EnglishClear, natural English at a speed you can understandNew stories every weekLearn even more at PlainEnglish.com-- Mentioned in this episode:Hard words? No problemNever be confused by difficult words in Plain English again!

See translations of the hardest words and phrases from English to your language.

Each episode transcript includes built-in translations into Spanish, Portuguese, Chinese, German, French, Italian, Japanese, Polish, and Turkish.

Sign up for a free 14-day trial at PlainEnglish.com

Ver todos los episodios