The findings challenge previous assumptions about butterfly migration and highlight the role of phenotypic plasticity.

The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...

Swaner Preserve and EcoCenter will pair the exhibition with additional programming to help adults and kids learn more about, and engage with, butterflies found in Utah.

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in ...