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 ...

Scientists believe that day length and temperature changes trigger this remarkable instinctual migration drive. The Starting Point: Breeding and Reproduction Breeding and reproduction are the ...

Monarch's multigenerational migration is legendary — a journey of up to 3,000 ... their wings around 5 to 12 times per second — much more slowly than the average butterfly, who flaps about 20 times a ...

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 ...

Learn more about this amazing annual migration ... A display on the monarch and information on establishing butterfly-friendly plant areas will also be available. For more information about ...

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 ...

(Erika Lowe/Unsplash) The late arrival of the annual monarch butterfly migration in mid-November raised concerns among the residents of Ejido El Rosario, Michoacán, and its surrounding areas.

A monarch butterfly feeds at Cape May Point State Park in Lower Township, N.J., Wednesday, Oct. 14, 2020.Get Photo Monarch butterflies roost as the sun begins to set at The Nature Conservancy's ...