Adding milkweeds and other native flowering plants into midwestern agricultural lands is key to restoring monarch butterflies, with milkweed sowers from all sectors of society being critically needed for success.
Every winter, trees on high mountains in a small area northwest of Mexico City turn orange. Close inspection reveals branches filled with brilliantly colorful monarch butterflies, rather than fiery leaves, as the eastern ...
An analysis of data in Illinois has found a link between higher county-level use of an herbicide called glyphosate and reduced abundance of adult monarch butterflies, especially in areas with concentrated agriculture. This ...
Steep declines in the number of monarch butterflies reaching their wintering grounds in Mexico are not fully explained by fewer milkweeds in the northern part of their range, researchers report in a new study.
The number of monarch butterflies wintering in Mexico dropped by 27 percent this year, reversing last year's recovery from historically low numbers, according to a study by government and independent experts released Thursday.
University of Guelph researchers have pinpointed the North American birthplaces of migratory monarch butterflies that overwinter in Mexico, vital information that will help conserve the dwindling species.
Canada's caribou population has reached "all-time low" levels, particularly in the eastern Arctic, where the animal was classified as endangered Monday along with the monarch butterfly, according to a committee of scientific ...
A special Mexican police unit has raided seven sawmills near the monarch butterfly's mountain sanctuary in a bid to prevent illegal logging threatening the insect's winter migration, officials said Tuesday.
How migration boosts the size of monarch butterflies?
Some 200 intellectuals, scientists and artists from around the world urged the leaders of Mexico, the United States and Canada on Wednesday to save North America's endangered migratory Monarch butterfly.