The natural phenomenon of the iconic monarch butterflies migrating south for the winter is a fascinating one - and it's one ...

Migratory monarch butterflies entered the International Union of Conservation ... and natural enemies such as predators, parasitoids, and diseases. A changing climate is making some habitat less ...

Teenager Davi Nunes Moreira was rushed to hospital in Planalto in the north-east Brazilian state of Bahia after he began ...

The study was one of several that assessed the effects of climate change on three species of butterflies whose populations are declining.

Monarch butterflies are unique in their migration patterns. Eastern monarchs travel between Mexico and the U.S., spending ...

The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...

Monarch butterflies—including western monarchs ... The costs could include longer exposure for the insects to predators or parasites, or the creation of what ecologists call a "development ...