Monarch butterflies are poisonous to predators because of the chemicals in the milkweed they eat as caterpillars. In just the 9 to 14 days of the larval stage, a monarch caterpillar can grow to 2,700 ...

Commissioner Sid Miller, Department of Agriculture report double increase in Mexico monarch butterfly population after 2024 ...

In a turn of events, the eastern monarch butterfly population — which was put on the list of endangered species just a few years ago — nearly doubled this year, according to a March report ...

Monarch butterflies are important to a healthy ecosystem, but their existence in your garden is threatened by an all-too-familiar predator: wasps. While wasps are also important to the natural ...

The peak of the spring monarch butterfly migration in Texas typically occurs from late March to early April. See where on Journey North.

The monarch butterfly population has declined in recent decades, leading to a proposed listing as threatened under the Endangered Species Act. People can help monarch butterflies by planting ...