Butterflies are some of the most beautiful insects in the world ... Now, imagine seeing a massive monarch butterfly swarm, creating a breathtaking spectacle! This video by Nature on PBS shows ...

Monarch butterflies are amazing insects of North America with a unique two-way migration. These butterflies are famous for ...

In the mountains of Mexico, a spy hummingbird ventures into the heart of a breathtaking monarch butterfly swarm. Few filmmakers have been able to capture the spectacle this closely. - [Narrator ...

Follow Bryan Pfeiffer – aka “Butterfly Man” – as he leads a group of butterfly aficionados looking for these beautiful winged creatures at Eagle Hill Institute in Maine. - Any day outside ...

Like Colorado, Michigan also has its share of butterfly swarms each spring and fall. The Mitten State is part of a mysterious "flyway" - a path in the sky taken each year by a new generation of ...

Why Do Monarch Butterflies Swarm? Monarch butterflies, like other butterfly species and birds, must migrate to warmer climates during the cold winter months. Monarch butterflies are unique because ...