Monarch butterflies are returning to their natural winter habitat in Mexico after several years of decline, according to…
Milkweed
Monarch Butterfly May Be Moved to Threatened Species List
Declining monarch butterfly populations—a loss of 90 percent in the eastern U.S. in the last two decades—has led a coali…
Monarch Butterfly Migrations Major Casualties of Genetically Modified Crops
Genetically modified crops are causing a decline in healthy monarch butterfly migrations between the U.S. and Mexico, fi…
