The monarch butterfly life cycle begins with a whirl of wings in the heat of the summer sun. As a female monarch sips nectar ...

Furthermore, ARS researchers in Fargo are assessing artificial insemination techniques for female butterflies using cryopreserved sperm cells from male butterflies. The monarch butterfly ...

Monarch butterflies are making their flight north after wintering in Mexico. Here's what to know about the fascinating, fragile traveler.