Monarch butterflies with more white spots on their mostly orange-and-black wings are more successful at long-distance migration. Some scientists think the spots may affect airflow around their wings.

Every year, monarch butterflies undertake the arduous 3,000-mile journey from the Great Lakes to winter in California and Mexico. They have followed this migratory path for centuries, pollinating ...

Monarch butterflies hanging from tree branches 60 Minutes ... He shows us a spot where some butterflies have taken flight. Then, after a few minutes, ... Maybe it's a prehistoric route.

Walton blames the use of herbicides and pesticides for the decline in the monarch butterflies. If cattle eat milkweed, it can ...

As millions of monarch butterflies make their way down the east coast to Mexico for the winter, butterfly scientists want people in their flight path to report monarch sightings.

Monarch butterflies definitely need to fly well to complete their annual fall migration of up to 3,000 miles. "It's one of the most famous migrations of any insect in the world.

Monarch migration is one of the longest insect migrations in the world, with some butterflies traveling up to 3,000 miles. What makes this feat even more remarkable is that no single monarch ...

The annual migration of monarch butterflies is one of science's great mysteries: millions of monarchs know the correct path even though they have never made the long journey themselves. As 60 ...

How the monarch butterfly got its spots. The second part of the study evaluated size differences in white spots between the monarch and six of its closest cousins in the genus Danaus.. When study ...

Monarch butterflies with more white spots on their mostly orange ... easing the butterflies' flight. ... They studied nearly 400 wild monarch wings from different locations along the migration path.

As millions of monarch butterflies make their way down the east coast to Mexico for the winter, butterfly scientists want people in their flight path to report monarch sightings. Doing so can help ...