New video loaded: Why are scientists performing brain surgery on monarchs?
Scientists in Texas are studying monarch butterflies to understand how they migrate thousands of miles, perhaps by sensing the Earth's magnetic field. Alexa Robles-Gil explains how researchers are looking into butterfly brains to find answers.
Written by Alexa Robles-Gil, Leila Medina, Joey Sendaydiego, Mark Felix
December 23, 2025
