Come fall, monarch butterflies feel the need for a change in latitude. A new study shows that changes in the activity of a suite of genes in the butterflies’ brains help the insects find their way to overwintering grounds in Mexico.
Come fall, monarch butterflies feel the need for a change in latitude. A new study shows that changes in the activity of a suite of genes in the butterflies’ brains help the insects find their way to overwintering grounds in Mexico.