In North America, one butterfly, the viceroy (Limenitis archippus), may be easily mistaken for the monarch due to their similar colors. This is known as Müllerian mimicry. The monarch butterfly ...

Butterflies are fragile and vulnerable to predation by all kinds of critters, from birds and reptiles to spiders and other ...

Monarch butterflies are most common in North America, especially in the United States and Mexico. However, they may be found elsewhere, including South America, Australia, and Asia. In North America, ...

This sap contains toxic steroids called cardenolides. Predators have learned to avoid Monarch butterflies, which are toxic and bitter tasting. Because of this, the similarly colored Viceroy butterfly ...

Idaho Fish and Game is looking for volunteers to survey milkweed patches and count monarch butterflies across the state this ...

Monarch butterflies are famous for their annual migrations, but not all migrate. In recent years, more and more monarchs have ...

Monarch butterflies are famous for their annual migrations, but not all migrate. In recent years, more and more monarchs have ...

Urban monarchs formed isolated populations with limited impact on migratory butterflies, suggesting city habitats can support ...

The team of volunteers is trying to save monarch butterflies by cultivating milkweed — the only plant where they lay eggs.

The monarch butterfly migrates up to 3,000 miles from southern Canada to overwinter in central Mexico. ©USFWSmidwest, Public domain, via Wikimedia Commons – Original / License ...

By late May each year, monarch butterflies (Danaus plexippus) return to the Berkshires from their winter home in the oyamel fir forests in the Sierra Madre Mountains of central Mexico, ...

Monarch butterflies are famous for their annual migrations, but not all migrate. In recent years, more and more monarchs have ...