Environmentalists say monarch populations are shrinking because of warmer temperatures from brought on by climate change, agricultural expansion and herbicides that have hindered growth of

It’s a big day for insects. The U.S. Fish and Wildlife Service announced Tuesday that it is proposing the monarch butterfly for threatened species status under the Endangered Species Act, a big step forward in a process set in motion in 2014 with a petition from conservationists.

The recent proposal by U.S. Fish and Wildlife Service to list Monarch Butterflies as threatened due to drastic population declines is a big deal.