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The magnetic compass is the last unknown sense in migrating animals. For some scientists, the monarch butterfly is leading the way. The magnetic compass is the last unknown sense in migrating animals.

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. New tech is allowing researchers to ...

The monarch butterfly migration is off to a tough start this season — with fewer butterflies than usual fluttering to the Pismo State Beach Monarch Butterfly Grove. As of Wednesday, California State ...

MADISON, Wis. (AP) — President Donald Trump’s administration has delayed a decision on whether to extend federal protections to monarch butterflies indefinitely despite years of warnings from ...

SAN FRANCISCO (KGO) -- When this monarch butterfly hits the sky it won't be traveling alone. In fact, an energetic team of researchers will be following along with a revolutionary technology that's ...

Scientists are putting backpacks on butterflies at Ellwood Mesa. These “backpacks” are brand new, solar-powered radio tags that weigh about as much as a few grains of rice. For the first time ever, ...

Monarch butterflies are in decline largely because of habitat degradation, including in the Monarch Butterfly Biosphere Reserve in the forested mountains of Central Mexico. Researchers looked at ...

Monarch butterflies from the western United States have arrived in Santa Cruz and other parts of the California Coast, clumping in the thousands on branches of Monterey pine, coastal redwoods and ...

MISSION, Texas (Border Report) — Wearing dark sunglasses, long sleeves and a wide-brimmed hat, Florida retiree Linda Cooper came prepared to gaze at butterflies in 90-degree weather Thursday at the ...