Monarch numbers have plummeted in recent decades and scientists think it’s due in large part to the reduction of milkweed in the U.S. and Canada from increased herbicide use, as well as deforestation ...

Monarch butterflies are some of the world’s most beautiful insects, but they’re experiencing rather tough times at the moment. Unfortunately, a new study performed by Louisiana State University ...

Monarch butterflies and their close relatives thrive on poisonous milkweed, thanks to genetic mutations that block the effects of the plant’s toxins while allowing the poisons to accumulate in the ...

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 ...

According to a study from UC Riverside and UC Berkeley researchers, some predators of monarch butterflies have evolved through genetic mutations that allow them, too, to eat poisonous milkweed, making ...

Probably one of the most researched, studied, filmed, and recognized butterflies of them all, monarch butterflies sport some of the most wonderful fall colors you will see. But beware, those colors ...

The milkweed plant may be a crucial food source for the embattled monarch butterfly, but it is not so friendly to livestock. With proper management, however, officials say issues can be easily avoided ...