Unpredictable light exposure disrupts biological sex differences in birds

Light helps us wake up, keeps us alert, and guides our sleep. But what happens when light becomes erratic? As a researcher studying molecular biology and animal stress responses, I've been fascinated by how environmental changes affect living organisms in subtle but powerful ways. In our latest study in the Journal of Pineal Research, we discovered that irregular light exposure disrupts the natural molecular differences between male and female birds—especially in the brain.

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