Something about the monarch butterfly population rebound surprised scientists, and it was not just the size of the increase. It was how fast it happened. After years of decline, the population jumped ...

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 tiny ...

The arrival of monarchs in the Northeast is one of nature’s most beautiful spectacles. Their grueling journey pays off, but it’s a miraculous flight that requires multiple generations of butterflies.

Imagine going on a trip that’s thousands of miles long and flying the entire way! That’s what monarch butterflies do every year in one of the animal kingdom’s most epic journeys. But how exactly do ...

Monarch butterflies undergo a complete metamorphosis, or a four-part life cycle. Life begins as a tiny egg, which soon hatches an elfin larva, or caterpillar. The caterpillar does much of the heavy ...

Monarch butterflies are migrating north and have been spotted in states near Michigan. Although their wintering population doubled this year, monarchs have experienced a significant overall decline ...

Shelley Ramey raises monarch butterflies in her backyard to help boost their dwindling population. Monarch butterflies face threats from habitat loss and climate change, making conservation efforts ...

The monarch butterfly (Danaus plexippus) is renowned for its black-and-orange beauty and its spectacular migration of thousands of miles to overwinter in California and Mexico. Many of us lament that ...

For the first time, scientists are tracking the migration of monarch butterflies across much of North America, actively monitoring individual insects on journeys from as far away as Ontario all the ...