The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...

Monarchs across the continent face mounting threats, chief among them vanishing milkweed, the host plant for the insect's ...

That’s how typical reef-building corals, like the iconic elkhorn and staghorn species, with their antler-like appearance, ...

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