Butterfly populations have dropped by 22% in the United States, according to a new study published Thursday in the journal ...

What sounded like leaves rustling in the wind was the flickering wings of thousands of monarch butterflies as they flitted ...

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This year’s count of 4.42 acres of occupied forest habitat is nearly twice as large as last year's, but eastern monarch ...

A neural change in butterflies alters mating preferences, influencing evolution through genetic and sensory mechanisms.

A study, published Thursday in the journal Science, found that 22% of butterflies in the United States disappeared between ...

President Donald Trump and DOGE boss Elon Musk are on a mission to significantly cut federal spending by $1 trillion this ...

An alarming new study shows the overall population of butterflies is declining sharply. NBC News' Maya Eaglin spoke with ...

Butterflies are vanishing nationwide due to habitat loss, climate change and use of insecticides, according to a new study, ...

One butterfly comes so far, and then it will stop to reproduce, and then the offspring from that monarch will emerge from the ...