Add Yahoo as a preferred source to see more of our stories on Google. We have been encouraging our backyard milkweed to grow ever since we moved over five years ago. I have friends who have issues ...

Migration Magic It’s not easy being a monarch butterfly these days. Your caterpillar’s essential milkweed food is no longer abundant; illegal logging and beetle infestations threaten your main winter ...

The monarch butterfly is iconic in North America — but in Montana, it is a rare sight. That’s why when landscaper Kathy Ross ...

Maybe science has misunderstood the dining style of big monarch butterfly caterpillars. What insect watchers have called defense against the toxic latex a milkweed plant oozes may not be avoidance at ...

Retired schoolteacher Tachi Dellinger pointed inside a mesh box, where three green chrysalises hung. “This one is starting to change color,” Dellinger said. “It will turn jet black ... when it's ready ...

Learn facts about the monarch butterfly, including how how to tell male and female monarchs apart and if monarchs are ...