US butterfly populations are declining because of insecticides, climate change and habitat loss, with the number of the ...

Monarchs from east of the Rocky Mountains in the United States and Canada overwinter in the mountains west of Mexico City.

The population wintering in central Mexico's forests occupied 4.42 acres, up from 2.22 acres during the previous winter.

The number of butterflies in the contiguous United States declined by 22 percent this century, a collapse with potentially ...

A Pennsylvania butterfly farmer says listing the monarch as a threatened species could do more harm than good.

King Charles missed the service last year while he temporarily stepped back from public life after being diagnosed with cancer. In addition to the UK, the King is sovereign of 14 Commonwealth realms.

Their adventure could help save the iconic monarch butterfly. If you see a butterfly with orange wings, it's most likely a monarch. They may seem delicate, but every winter, hundreds of them fly ...

This is what makes the monarch butterfly taste so terrible to predators, although experts have been quick to point out the amount of these toxins tends to be too small to represent a serious risk ...

creating a dataset that made it possible for a Montana State University ecologist to pinpoint how climate variations have affected the migratory patterns of Camp Dodge's monarch butterfly ...

His book is an enthralling historical exploration of the role of airborne microorganisms in disease, and examines why these pathogens have been overlooked for centuries. Vaccine specialist Peter ...