Say the word "butterfly," and the iconic orange and black of the monarch may immediately spring to mind. But they are ...

The major U.S. Fish and Wildlife Service’s proposal would declare the iconic species as threatened, with federal scientists saying the species is on the decline.

Monarch butterflies, known for their distinctive orange-and-black wings, are found across ... to develop from an egg all the way into a butterfly, and if those change during certain times of ...

Generations have watched in wonder as yellow-and-black striped caterpillars ... much more slowly than the average butterfly, who flaps about 20 times a second. In the right conditions, a migrating ...

Monarch butterflies, known for their distinctive orange-and-black wings, are found across North America. Monarchs in the eastern United States spend their winters in Mexico and are counted by the ...

the monarch migrates from colder climates to the moderate temperatures of the Central Coast in mid-October. Populations of the black and gold butterfly can be observed at roosting sites of ...

The Western population of the monarch butterfly hit a near-record low with fewer than 10,000 found living in California this winter, a foreboding sign.

Generations have watched in wonder as yellow-and-black striped caterpillars ... much more slowly than the average butterfly, who flaps about 20 times a second. In the right conditions, a migrating ...

MADISON, Wisconsin — 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 ...