The monarch butterfly life cycle begins with a whirl of wings in the heat of the summer sun. As a female monarch sips nectar from a wildflower, a male hovers nearby. A pheromone is released from ...

Colony estimates at central Mexico overwintering sites indicate that monarch butterfly (Danaus plexippus) populations have declined over the past two decades. Among the leading causes of this ...

In 2023, more than 16,000 butterflies were counted at one local grove. The most recent count was a tiny fraction of that.

This cycle is crucial for their survival and ... In Mexico, many stories surround the monarch butterfly migration, showing how special these butterflies are to the people. Some believe the ...

Animal migration has fascinated humans for millennia ... Perhaps the best-known insect migrant is the monarch butterfly (Danaus plexippus) (Figure 3a). At the end of every summer, more than ...

Scientists are grappling with a stark population decline of the western monarch butterfly after the species’ numbers hit a ...

The western monarch butterfly is being considered for the endangered species list, but public comment is still being gathered ...

“The iconic monarch butterfly is cherished across North America, captivating children and adults throughout its fascinating life cycle ... tracks monarch migration in that country.