Despite some conservationists’ concerns, UC Davis researchers show that tropical milkweed has minimal impact on California monarch butterflies’ migratory patterns.

Monarch butterflies are quite a sight to see, arriving mid-October and staying in the area through the end of February.

U.S. Senator Jeff Merkley (D-OR) and U.S. Representative Jimmy Panetta (D-CA) introduced a bill on Friday aimed at preventing ...

Monarch Butterflies travel up to 3,000 miles in their migration from Mexico to Canada.

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Monarch butterfliesat the Santuario El Rosario, Mexico. The butterfly effect was conceived as a meteorological concept, but the framework may help scientists model future climate outcomes.

NORTHERN MICHIGAN., (WPBN/WGTU) — A recent study by the World Wildlife Fund has revealed a promising increase in the population of the eastern monarch butterfly, marking a significant rebound ...

Monarch butterflies play a huge role as pollinators in Oklahoma. We visited Euchee Butterfly Farm to learn why they are important to our ecosystem, and how we can help them thrive.

If, despite that warning, a bird eats a monarch butterfly, glycosides make it sick, a memorable lesson for that bird (and presumably for other birds in the same territory) to refrain from even going ...