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The video has one extra line in addition to the lyrics above (just before the 2nd to last line). The line is "para sus hijitos" (for her babies).
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Thanks!
Thanks to Rachel from My Spanish Games for sharing this animation!

Sheet Music

Sheet Music - Rana Cucú

Thanks and Acknowledgements

Many thanks to Olga López from GLF Venture Inc. for contributing and translating this song

¡Muchas gracias!