The Atala butterfly (Eumaeus atala) and its five closest relatives in the genus Eumaeus like to display their toxicity. This sextet’s toxicity comes from what they eat as caterpillars: plants called ...

In high enough concentrations, milkweed can kill a horse, or a human. To be able to eat this plant, monarchs evolved a set of unusual cellular mutations. New research shows the animals that prey on ...

The Atala butterfly (Eumaeus atala) and its five closest relatives in the genus Eumaeus like to display their toxicity. This sextet's toxicity comes from what they eat as caterpillars: plants called ...

Monarch butterflies are one of nature's most recognizable creatures, known for their bright colors and epic annual migration from the United States and Canada to Mexico. Yet there is much more to the ...

The caterpillar of the monarch butterfly thrives on milkweed, a poisonous plant that's deadly to many. A team of researchers announced last week they had pinpointed three genetic mutations that allow ...

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 ...

They may be beautiful, but the gorgeous coloring of the Atala butterfly is a signal to would-be predators that it is highly poisonous. It’s a common strategy in nature: brightly colored species are ...

Scientists now understand how certain animals can feed on picturesque, orange monarch butterflies, which are filled from head to abdomen with milkweed plant toxins. In high enough concentrations, ...

The Atala butterfly and its five closest relatives in the genus Eumaeus like to display their toxicity. Their toxicity comes from what they eat as caterpillars: plants called cycads that have been ...