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

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

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“You can really make a difference to the local population. Any individual flower you put out it likely to get visited,” said ...

The World Wildlife Fund's latest count of migratory monarch butterflies offers some encouraging news for the eastern population while the western population may be struggling to survive.

Butterflies of all kinds of species, in all parts of the country, have declined by one to two percent since 2000.