Diario del proyecto Butterflies of California

Over 20 years, citizen scientists across North America tagged more than 1 million monarch butterflies as they flitted their way southward on one of nature’s more mysterious migrations. Now, scientists analyzing data from those journeys have discovered what may trigger them: the angle of the high noon Sun—which changes over time and as one moves closer to the equator.

https://www.sciencemag.org/news/2019/12/mysterious-monarch-migrations-may-be-triggered-angle-sun

There's a special connection between a child and a butterfly. Both seemingly float through life, carefree and innocent.

https://abc7.com/amp/science/protecting-the-future-of-monarch-butterflies/5789736/

The start of a new year can mean only one thing: no, not champagne and confetti — a hunt for butterflies.

https://www.ucdavis.edu/news/beer-butterfly-contest-continues-2020/